Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding"

    Two issues identified by buildbots were addressed:
    - The pass no longer forwards COPYs to physical register uses, since
      doing so can break code that implicitly relies on the physical
      register number of the use.
    - The pass no longer forwards COPYs to undef uses, since doing so
      can break the machine verifier by creating LiveRanges that don't
      end on a use (since the undef operand is not considered a use).

    [MachineCopyPropagation] Extend pass to do COPY source forwarding

    This change extends MachineCopyPropagation to do COPY source forwarding.

    This change also extends the MachineCopyPropagation pass to be able to
    be run during register allocation, after physical registers have been
    assigned, but before the virtual registers have been re-written, which
    allows it to remove virtual register COPY LiveIntervals that become dead
    through the forwarding of all of their uses.

    Reviewers: qcolombet, javed.absar, MatzeB, jonpa

    Subscribers: jyknight, nemanjai, llvm-commits, nhaehnle, mcrosier, mgorny

    Differential Revision: https://reviews.llvm.org/D30751

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311135 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/Passes.h

@@ -278,6 +278,11 @@ namespace llvm {
   /// MachineSinking - This pass performs sinking on machine instructions.
   extern char &MachineSinkingID;
 
+  /// MachineCopyPropagationPreRegRewrite - This pass performs copy propagation
+  /// on machine instructions after register allocation but before virtual
+  /// register re-writing..
+  extern char &MachineCopyPropagationPreRegRewriteID;
+
   /// MachineCopyPropagation - This pass performs copy propagation on
   /// machine instructions.
   extern char &MachineCopyPropagationID;

include/llvm/InitializePasses.h

@@ -233,6 +233,7 @@ void initializeMachineBranchProbabilityInfoPass(PassRegistry&);
 void initializeMachineCSEPass(PassRegistry&);
 void initializeMachineCombinerPass(PassRegistry&);
 void initializeMachineCopyPropagationPass(PassRegistry&);
+void initializeMachineCopyPropagationPreRegRewritePass(PassRegistry&);
 void initializeMachineDominanceFrontierPass(PassRegistry&);
 void initializeMachineDominatorTreePass(PassRegistry&);
 void initializeMachineFunctionPrinterPassPass(PassRegistry&);

lib/CodeGen/CodeGen.cpp

@@ -54,6 +54,7 @@ void llvm::initializeCodeGen(PassRegistry &Registry) {
   initializeMachineCSEPass(Registry);
   initializeMachineCombinerPass(Registry);
   initializeMachineCopyPropagationPass(Registry);
+  initializeMachineCopyPropagationPreRegRewritePass(Registry);
   initializeMachineDominatorTreePass(Registry);
   initializeMachineFunctionPrinterPassPass(Registry);
   initializeMachineLICMPass(Registry);

lib/CodeGen/MachineCopyPropagation.cpp

@@ -7,20 +7,65 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This is an extremely simple MachineInstr-level copy propagation pass.
+// This is a simple MachineInstr-level copy forwarding pass.  It may be run at
+// two places in the codegen pipeline:
+//   - After register allocation but before virtual registers have been remapped
+//     to physical registers.
+//   - After physical register remapping.
+//
+// The optimizations done vary slightly based on whether virtual registers are
+// still present.  In both cases, this pass forwards the source of COPYs to the
+// users of their destinations when doing so is legal.  For example:
+//
+//   %vreg1 = COPY %vreg0
+//   ...
+//   ... = OP %vreg1
+//
+// If
+//   - the physical register assigned to %vreg0 has not been clobbered by the
+//     time of the use of %vreg1
+//   - the register class constraints are satisfied
+//   - the COPY def is the only value that reaches OP
+// then this pass replaces the above with:
+//
+//   %vreg1 = COPY %vreg0
+//   ...
+//   ... = OP %vreg0
+//
+// and updates the relevant state required by VirtRegMap (e.g. LiveIntervals).
+// COPYs whose LiveIntervals become dead as a result of this forwarding (i.e. if
+// all uses of %vreg1 are changed to %vreg0) are removed.
+//
+// When being run with only physical registers, this pass will also remove some
+// redundant COPYs.  For example:
+//
+//    %R1 = COPY %R0
+//    ... // No clobber of %R1
+//    %R0 = COPY %R1 <<< Removed
+//
+// or
+//
+//    %R1 = COPY %R0
+//    ... // No clobber of %R0
+//    %R1 = COPY %R0 <<< Removed
 //
 //===----------------------------------------------------------------------===//
 
+#include "LiveDebugVariables.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/LiveRangeEdit.h"
+#include "llvm/CodeGen/LiveStackAnalysis.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/Passes.h"
+#include "llvm/CodeGen/VirtRegMap.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/DebugCounter.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetRegisterInfo.h"
@@ -30,24 +75,50 @@ using namespace llvm;
 #define DEBUG_TYPE "machine-cp"
 
 STATISTIC(NumDeletes, "Number of dead copies deleted");
+STATISTIC(NumCopyForwards, "Number of copy uses forwarded");
+DEBUG_COUNTER(FwdCounter, "machine-cp-fwd",
+              "Controls which register COPYs are forwarded");
 
 namespace {
   typedef SmallVector<unsigned, 4> RegList;
   typedef DenseMap<unsigned, RegList> SourceMap;
   typedef DenseMap<unsigned, MachineInstr*> Reg2MIMap;
 
-  class MachineCopyPropagation : public MachineFunctionPass {
+  class MachineCopyPropagation : public MachineFunctionPass,
+                                 private LiveRangeEdit::Delegate {
     const TargetRegisterInfo *TRI;
     const TargetInstrInfo *TII;
-    const MachineRegisterInfo *MRI;
+    MachineRegisterInfo *MRI;
+    MachineFunction *MF;
+    SlotIndexes *Indexes;
+    LiveIntervals *LIS;
+    const VirtRegMap *VRM;
+    // True if this pass being run before virtual registers are remapped to
+    // physical ones.
+    bool PreRegRewrite;
+    bool NoSubRegLiveness;
+
+  protected:
+    MachineCopyPropagation(char &ID, bool PreRegRewrite)
+        : MachineFunctionPass(ID), PreRegRewrite(PreRegRewrite) {}
 
   public:
     static char ID; // Pass identification, replacement for typeid
-    MachineCopyPropagation() : MachineFunctionPass(ID) {
+    MachineCopyPropagation() : MachineCopyPropagation(ID, false) {
       initializeMachineCopyPropagationPass(*PassRegistry::getPassRegistry());
     }
 
     void getAnalysisUsage(AnalysisUsage &AU) const override {
+      if (PreRegRewrite) {
+        AU.addRequired<SlotIndexes>();
+        AU.addPreserved<SlotIndexes>();
+        AU.addRequired<LiveIntervals>();
+        AU.addPreserved<LiveIntervals>();
+        AU.addRequired<VirtRegMap>();
+        AU.addPreserved<VirtRegMap>();
+        AU.addPreserved<LiveDebugVariables>();
+        AU.addPreserved<LiveStacks>();
+      }
       AU.setPreservesCFG();
       MachineFunctionPass::getAnalysisUsage(AU);
     }
@@ -55,6 +126,10 @@ namespace {
     bool runOnMachineFunction(MachineFunction &MF) override;
 
     MachineFunctionProperties getRequiredProperties() const override {
+      if (PreRegRewrite)
+        return MachineFunctionProperties()
+            .set(MachineFunctionProperties::Property::NoPHIs)
+            .set(MachineFunctionProperties::Property::TracksLiveness);
       return MachineFunctionProperties().set(
           MachineFunctionProperties::Property::NoVRegs);
     }
@@ -64,6 +139,28 @@ namespace {
     void ReadRegister(unsigned Reg);
     void CopyPropagateBlock(MachineBasicBlock &MBB);
     bool eraseIfRedundant(MachineInstr &Copy, unsigned Src, unsigned Def);
+    unsigned getPhysReg(unsigned Reg, unsigned SubReg);
+    unsigned getPhysReg(const MachineOperand &Opnd) {
+      return getPhysReg(Opnd.getReg(), Opnd.getSubReg());
+    }
+    unsigned getFullPhysReg(const MachineOperand &Opnd) {
+      return getPhysReg(Opnd.getReg(), 0);
+    }
+    void forwardUses(MachineInstr &MI);
+    bool isForwardableRegClassCopy(const MachineInstr &Copy,
+                                   const MachineInstr &UseI);
+    std::tuple<unsigned, unsigned, bool>
+    checkUseSubReg(const MachineOperand &CopySrc, const MachineOperand &MOUse);
+    bool hasImplicitOverlap(const MachineInstr &MI, const MachineOperand &Use);
+    void narrowRegClass(const MachineInstr &MI, const MachineOperand &MOUse,
+                        unsigned NewUseReg, unsigned NewUseSubReg);
+    void updateForwardedCopyLiveInterval(const MachineInstr &Copy,
+                                         const MachineInstr &UseMI,
+                                         unsigned OrigUseReg,
+                                         unsigned NewUseReg,
+                                         unsigned NewUseSubReg);
+    /// LiveRangeEdit callback for eliminateDeadDefs().
+    void LRE_WillEraseInstruction(MachineInstr *MI) override;
 
     /// Candidates for deletion.
     SmallSetVector<MachineInstr*, 8> MaybeDeadCopies;
@@ -75,6 +172,15 @@ namespace {
     SourceMap SrcMap;
     bool Changed;
   };
+
+  class MachineCopyPropagationPreRegRewrite : public MachineCopyPropagation {
+  public:
+    static char ID; // Pass identification, replacement for typeid
+    MachineCopyPropagationPreRegRewrite()
+        : MachineCopyPropagation(ID, true) {
+      initializeMachineCopyPropagationPreRegRewritePass(*PassRegistry::getPassRegistry());
+    }
+  };
 }
 char MachineCopyPropagation::ID = 0;
 char &llvm::MachineCopyPropagationID = MachineCopyPropagation::ID;
@@ -82,6 +188,29 @@ char &llvm::MachineCopyPropagationID = MachineCopyPropagation::ID;
 INITIALIZE_PASS(MachineCopyPropagation, DEBUG_TYPE,
                 "Machine Copy Propagation Pass", false, false)
 
+/// We have two separate passes that are very similar, the only difference being
+/// where they are meant to be run in the pipeline.  This is done for several
+/// reasons:
+/// - the two passes have different dependencies
+/// - some targets want to disable the later run of this pass, but not the
+///   earlier one (e.g. NVPTX and WebAssembly)
+/// - it allows for easier debugging via llc
+
+char MachineCopyPropagationPreRegRewrite::ID = 0;
+char &llvm::MachineCopyPropagationPreRegRewriteID = MachineCopyPropagationPreRegRewrite::ID;
+
+INITIALIZE_PASS_BEGIN(MachineCopyPropagationPreRegRewrite,
+                      "machine-cp-prerewrite",
+                      "Machine Copy Propagation Pre-Register Rewrite Pass",
+                      false, false)
+INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
+INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
+INITIALIZE_PASS_DEPENDENCY(VirtRegMap)
+INITIALIZE_PASS_END(MachineCopyPropagationPreRegRewrite,
+                    "machine-cp-prerewrite",
+                    "Machine Copy Propagation Pre-Register Rewrite Pass", false,
+                    false)
+
 /// Remove any entry in \p Map where the register is a subregister or equal to
 /// a register contained in \p Regs.
 static void removeRegsFromMap(Reg2MIMap &Map, const RegList &Regs,
@@ -122,6 +251,10 @@ void MachineCopyPropagation::ClobberRegister(unsigned Reg) {
 }
 
 void MachineCopyPropagation::ReadRegister(unsigned Reg) {
+  // We don't track MaybeDeadCopies when running pre-VirtRegRewriter.
+  if (PreRegRewrite)
+    return;
+
   // If 'Reg' is defined by a copy, the copy is no longer a candidate
   // for elimination.
   for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) {
@@ -153,6 +286,46 @@ static bool isNopCopy(const MachineInstr &PreviousCopy, unsigned Src,
   return SubIdx == TRI->getSubRegIndex(PreviousDef, Def);
 }
 
+/// Return the physical register assigned to \p Reg if it is a virtual register,
+/// otherwise just return the physical reg from the operand itself.
+///
+/// If \p SubReg is 0 then return the full physical register assigned to the
+/// virtual register ignoring subregs.  If we aren't tracking sub-reg liveness
+/// then we need to use this to be more conservative with clobbers by killing
+/// all super reg and their sub reg COPYs as well.  This is to prevent COPY
+/// forwarding in cases like the following:
+///
+///    %vreg2 = COPY %vreg1:sub1
+///    %vreg3 = COPY %vreg1:sub0
+///    ...    = OP1 %vreg2
+///    ...    = OP2 %vreg3
+///
+/// After forward %vreg2 (assuming this is the last use of %vreg1) and
+/// VirtRegRewriter adding kill markers we have:
+///
+///    %vreg3 = COPY %vreg1:sub0
+///    ...    = OP1 %vreg1:sub1<kill>
+///    ...    = OP2 %vreg3
+///
+/// If %vreg3 is assigned to a sub-reg of %vreg1, then after rewriting we have:
+///
+///    ...     = OP1 R0:sub1, R0<imp-use,kill>
+///    ...     = OP2 R0:sub0
+///
+/// and the use of R0 by OP2 will not have a valid definition.
+unsigned MachineCopyPropagation::getPhysReg(unsigned Reg, unsigned SubReg) {
+
+  // Physical registers cannot have subregs.
+  if (!TargetRegisterInfo::isVirtualRegister(Reg))
+    return Reg;
+
+  assert(PreRegRewrite && "Unexpected virtual register encountered");
+  Reg = VRM->getPhys(Reg);
+  if (SubReg && !NoSubRegLiveness)
+    Reg = TRI->getSubReg(Reg, SubReg);
+  return Reg;
+}
+
 /// Remove instruction \p Copy if there exists a previous copy that copies the
 /// register \p Src to the register \p Def; This may happen indirectly by
 /// copying the super registers.
@@ -190,6 +363,350 @@ bool MachineCopyPropagation::eraseIfRedundant(MachineInstr &Copy, unsigned Src,
   return true;
 }
 
+
+/// Decide whether we should forward the destination of \param Copy to its use
+/// in \param UseI based on the register class of the Copy operands.  Same-class
+/// COPYs are always accepted by this function, but cross-class COPYs are only
+/// accepted if they are forwarded to another COPY with the operand register
+/// classes reversed.  For example:
+///
+///   RegClassA = COPY RegClassB  // Copy parameter
+///   ...
+///   RegClassB = COPY RegClassA  // UseI parameter
+///
+/// which after forwarding becomes
+///
+///   RegClassA = COPY RegClassB
+///   ...
+///   RegClassB = COPY RegClassB
+///
+/// so we have reduced the number of cross-class COPYs and potentially
+/// introduced a no COPY that can be removed.
+bool MachineCopyPropagation::isForwardableRegClassCopy(
+    const MachineInstr &Copy, const MachineInstr &UseI) {
+  auto isCross = [&](const MachineOperand &Dst, const MachineOperand &Src) {
+    unsigned DstReg = Dst.getReg();
+    unsigned SrcPhysReg = getPhysReg(Src);
+    const TargetRegisterClass *DstRC;
+    if (TargetRegisterInfo::isVirtualRegister(DstReg)) {
+      DstRC = MRI->getRegClass(DstReg);
+      unsigned DstSubReg = Dst.getSubReg();
+      if (DstSubReg)
+        SrcPhysReg = TRI->getMatchingSuperReg(SrcPhysReg, DstSubReg, DstRC);
+    } else
+      DstRC = TRI->getMinimalPhysRegClass(DstReg);
+
+    return !DstRC->contains(SrcPhysReg);
+  };
+
+  const MachineOperand &CopyDst = Copy.getOperand(0);
+  const MachineOperand &CopySrc = Copy.getOperand(1);
+
+  if (!isCross(CopyDst, CopySrc))
+    return true;
+
+  if (!UseI.isCopy())
+    return false;
+
+  assert(getFullPhysReg(UseI.getOperand(1)) == getFullPhysReg(CopyDst));
+  return !isCross(UseI.getOperand(0), CopySrc);
+}
+
+/// Check that the subregs on the copy source operand (\p CopySrc) and the use
+/// operand to be forwarded to (\p MOUse) are compatible with doing the
+/// forwarding.  Also computes the new register and subregister to be used in
+/// the forwarded-to instruction.
+std::tuple<unsigned, unsigned, bool> MachineCopyPropagation::checkUseSubReg(
+    const MachineOperand &CopySrc, const MachineOperand &MOUse) {
+  unsigned NewUseReg = CopySrc.getReg();
+  unsigned NewUseSubReg;
+
+  if (TargetRegisterInfo::isPhysicalRegister(NewUseReg)) {
+    // If MOUse is a virtual reg, we need to apply it to the new physical reg
+    // we're going to replace it with.
+    if (MOUse.getSubReg())
+      NewUseReg = TRI->getSubReg(NewUseReg, MOUse.getSubReg());
+    // If the original use subreg isn't valid on the new src reg, we can't
+    // forward it here.
+    if (!NewUseReg)
+      return std::make_tuple(0, 0, false);
+    NewUseSubReg = 0;
+  } else {
+    // %v1 = COPY %v2:sub1
+    //    USE %v1:sub2
+    // The new use is %v2:sub1:sub2
+    NewUseSubReg =
+        TRI->composeSubRegIndices(CopySrc.getSubReg(), MOUse.getSubReg());
+    // Check that NewUseSubReg is valid on NewUseReg
+    if (NewUseSubReg &&
+        !TRI->getSubClassWithSubReg(MRI->getRegClass(NewUseReg), NewUseSubReg))
+      return std::make_tuple(0, 0, false);
+  }
+
+  return std::make_tuple(NewUseReg, NewUseSubReg, true);
+}
+
+/// Check that \p MI does not have implicit uses that overlap with it's \p Use
+/// operand (the register being replaced), since these can sometimes be
+/// implicitly tied to other operands.  For example, on AMDGPU:
+///
+/// V_MOVRELS_B32_e32 %VGPR2, %M0<imp-use>, %EXEC<imp-use>, %VGPR2_VGPR3_VGPR4_VGPR5<imp-use>
+///
+/// the %VGPR2 is implicitly tied to the larger reg operand, but we have no
+/// way of knowing we need to update the latter when updating the former.
+bool MachineCopyPropagation::hasImplicitOverlap(const MachineInstr &MI,
+                                                const MachineOperand &Use) {
+  if (!TargetRegisterInfo::isPhysicalRegister(Use.getReg()))
+    return false;
+
+  for (const MachineOperand &MIUse : MI.uses())
+    if (&MIUse != &Use && MIUse.isReg() && MIUse.isImplicit() &&
+        TRI->regsOverlap(Use.getReg(), MIUse.getReg()))
+      return true;
+
+  return false;
+}
+
+/// Narrow the register class of the forwarded vreg so it matches any
+/// instruction constraints.  \p MI is the instruction being forwarded to. \p
+/// MOUse is the operand being replaced in \p MI (which hasn't yet been updated
+/// at the time this function is called).  \p NewUseReg and \p NewUseSubReg are
+/// what the \p MOUse will be changed to after forwarding.
+///
+/// If we are forwarding
+///    A:RCA = COPY B:RCB
+/// into
+///    ... = OP A:RCA
+///
+/// then we need to narrow the register class of B so that it is a subclass
+/// of RCA so that it meets the instruction register class constraints.
+void MachineCopyPropagation::narrowRegClass(const MachineInstr &MI,
+                                            const MachineOperand &MOUse,
+                                            unsigned NewUseReg,
+                                            unsigned NewUseSubReg) {
+  if (!TargetRegisterInfo::isVirtualRegister(NewUseReg))
+    return;
+
+  // Make sure the virtual reg class allows the subreg.
+  if (NewUseSubReg) {
+    const TargetRegisterClass *CurUseRC = MRI->getRegClass(NewUseReg);
+    const TargetRegisterClass *NewUseRC =
+        TRI->getSubClassWithSubReg(CurUseRC, NewUseSubReg);
+    if (CurUseRC != NewUseRC) {
+      DEBUG(dbgs() << "MCP: Setting regclass of " << PrintReg(NewUseReg, TRI)
+                   << " to " << TRI->getRegClassName(NewUseRC) << "\n");
+      MRI->setRegClass(NewUseReg, NewUseRC);
+    }
+  }
+
+  unsigned MOUseOpNo = &MOUse - &MI.getOperand(0);
+  const TargetRegisterClass *InstRC =
+      TII->getRegClass(MI.getDesc(), MOUseOpNo, TRI, *MF);
+  if (InstRC) {
+    const TargetRegisterClass *CurUseRC = MRI->getRegClass(NewUseReg);
+    if (NewUseSubReg)
+      InstRC = TRI->getMatchingSuperRegClass(CurUseRC, InstRC, NewUseSubReg);
+    if (!InstRC->hasSubClassEq(CurUseRC)) {
+      const TargetRegisterClass *NewUseRC =
+          TRI->getCommonSubClass(InstRC, CurUseRC);
+      DEBUG(dbgs() << "MCP: Setting regclass of " << PrintReg(NewUseReg, TRI)
+                   << " to " << TRI->getRegClassName(NewUseRC) << "\n");
+      MRI->setRegClass(NewUseReg, NewUseRC);
+    }
+  }
+}
+
+/// Update the LiveInterval information to reflect the destination of \p Copy
+/// being forwarded to a use in \p UseMI.  \p OrigUseReg is the register being
+/// forwarded through. It should be the destination register of \p Copy and has
+/// already been replaced in \p UseMI at the point this function is called.  \p
+/// NewUseReg and \p NewUseSubReg are the register and subregister being
+/// forwarded.  They should be the source register of the \p Copy and should be
+/// the value of the \p UseMI operand being forwarded at the point this function
+/// is called.
+void MachineCopyPropagation::updateForwardedCopyLiveInterval(
+    const MachineInstr &Copy, const MachineInstr &UseMI, unsigned OrigUseReg,
+    unsigned NewUseReg, unsigned NewUseSubReg) {
+
+  assert(TRI->isSubRegisterEq(getPhysReg(OrigUseReg, 0),
+                              getFullPhysReg(Copy.getOperand(0))) &&
+         "OrigUseReg mismatch");
+  assert(TRI->isSubRegisterEq(getFullPhysReg(Copy.getOperand(1)),
+                              getPhysReg(NewUseReg, 0)) &&
+         "NewUseReg mismatch");
+
+  // Extend live range starting from COPY early-clobber slot, since that
+  // is where the original src live range ends.
+  SlotIndex CopyUseIdx =
+      Indexes->getInstructionIndex(Copy).getRegSlot(true /*=EarlyClobber*/);
+  SlotIndex UseIdx = Indexes->getInstructionIndex(UseMI).getRegSlot();
+  if (TargetRegisterInfo::isVirtualRegister(NewUseReg)) {
+    LiveInterval &LI = LIS->getInterval(NewUseReg);
+    LI.extendInBlock(CopyUseIdx, UseIdx);
+    LaneBitmask UseMask = TRI->getSubRegIndexLaneMask(NewUseSubReg);
+    for (auto &S : LI.subranges())
+      if ((S.LaneMask & UseMask).any() && S.find(CopyUseIdx))
+        S.extendInBlock(CopyUseIdx, UseIdx);
+  } else {
+    assert(NewUseSubReg == 0 && "Unexpected subreg on physical register!");
+    for (MCRegUnitIterator UI(NewUseReg, TRI); UI.isValid(); ++UI) {
+      LiveRange &LR = LIS->getRegUnit(*UI);
+      LR.extendInBlock(CopyUseIdx, UseIdx);
+    }
+  }
+
+  if (!TargetRegisterInfo::isVirtualRegister(OrigUseReg))
+    return;
+
+  LiveInterval &LI = LIS->getInterval(OrigUseReg);
+
+  // Can happen for undef uses.
+  if (LI.empty())
+    return;
+
+  SlotIndex UseIndex = Indexes->getInstructionIndex(UseMI);
+  const LiveRange::Segment *UseSeg = LI.getSegmentContaining(UseIndex);
+
+  // Only shrink if forwarded use is the end of a segment.
+  if (UseSeg->end != UseIndex.getRegSlot())
+    return;
+
+  SmallVector<MachineInstr *, 4> DeadInsts;
+  LIS->shrinkToUses(&LI, &DeadInsts);
+  if (!DeadInsts.empty()) {
+    SmallVector<unsigned, 8> NewRegs;
+    LiveRangeEdit(nullptr, NewRegs, *MF, *LIS, nullptr, this)
+        .eliminateDeadDefs(DeadInsts);
+  }
+}
+
+void MachineCopyPropagation::LRE_WillEraseInstruction(MachineInstr *MI) {
+  // Remove this COPY from further consideration for forwarding.
+  ClobberRegister(getFullPhysReg(MI->getOperand(0)));
+  Changed = true;
+}
+
+/// Look for available copies whose destination register is used by \p MI and
+/// replace the use in \p MI with the copy's source register.
+void MachineCopyPropagation::forwardUses(MachineInstr &MI) {
+  // We can't generally forward uses after virtual registers have been renamed
+  // because some targets generate code that has implicit dependencies on the
+  // physical register numbers.  For example, in PowerPC, when spilling
+  // condition code registers, the following code pattern is generated:
+  //
+  //   %CR7 = COPY %CR0
+  //   %R6 = MFOCRF %CR7
+  //   %R6 = RLWINM %R6, 29, 31, 31
+  //
+  // where the shift amount in the RLWINM instruction depends on the source
+  // register number of the MFOCRF instruction.  If we were to forward %CR0 to
+  // the MFOCRF instruction, the shift amount would no longer be correct.
+  //
+  // FIXME: It may be possible to define a target hook that checks the register
+  // class or user opcode and allows some cases, but prevents cases like the
+  // above from being broken to enable later register copy forwarding.
+  if (!PreRegRewrite)
+    return;
+
+  if (AvailCopyMap.empty())
+    return;
+
+  // Look for non-tied explicit vreg uses that have an active COPY
+  // instruction that defines the physical register allocated to them.
+  // Replace the vreg with the source of the active COPY.
+  for (MachineOperand &MOUse : MI.explicit_uses()) {
+    // Don't forward into undef use operands since doing so can cause problems
+    // with the machine verifier, since it doesn't treat undef reads as reads,
+    // so we can end up with a live range the ends on an undef read, leading to
+    // an error that the live range doesn't end on a read of the live range
+    // register.
+    if (!MOUse.isReg() || MOUse.isTied() || MOUse.isUndef())
+      continue;
+
+    unsigned UseReg = MOUse.getReg();
+    if (!UseReg)
+      continue;
+
+    // See comment above check for !PreRegRewrite regarding forwarding changing
+    // physical registers.
+    if (!TargetRegisterInfo::isVirtualRegister(UseReg))
+      continue;
+
+    UseReg = VRM->getPhys(UseReg);
+
+    // Don't forward COPYs via non-allocatable regs since they can have
+    // non-standard semantics.
+    if (!MRI->isAllocatable(UseReg))
+      continue;
+
+    auto CI = AvailCopyMap.find(UseReg);
+    if (CI == AvailCopyMap.end())
+      continue;
+
+    MachineInstr &Copy = *CI->second;
+    MachineOperand &CopyDst = Copy.getOperand(0);
+    MachineOperand &CopySrc = Copy.getOperand(1);
+
+    // Don't forward COPYs that are already NOPs due to register assignment.
+    if (getPhysReg(CopyDst) == getPhysReg(CopySrc))
+      continue;
+
+    // FIXME: Don't handle partial uses of wider COPYs yet.
+    if (CopyDst.getSubReg() != 0 || UseReg != getPhysReg(CopyDst))
+      continue;
+
+    // Don't forward COPYs of non-allocatable regs unless they are constant.
+    unsigned CopySrcReg = CopySrc.getReg();
+    if (TargetRegisterInfo::isPhysicalRegister(CopySrcReg) &&
+        !MRI->isAllocatable(CopySrcReg) && !MRI->isConstantPhysReg(CopySrcReg))
+      continue;
+
+    if (!isForwardableRegClassCopy(Copy, MI))
+      continue;
+
+    unsigned NewUseReg, NewUseSubReg;
+    bool SubRegOK;
+    std::tie(NewUseReg, NewUseSubReg, SubRegOK) =
+        checkUseSubReg(CopySrc, MOUse);
+    if (!SubRegOK)
+      continue;
+
+    if (hasImplicitOverlap(MI, MOUse))
+      continue;
+
+    if (!DebugCounter::shouldExecute(FwdCounter))
+      continue;
+
+    DEBUG(dbgs() << "MCP: Replacing "
+          << PrintReg(MOUse.getReg(), TRI, MOUse.getSubReg())
+          << "\n     with "
+          << PrintReg(NewUseReg, TRI, CopySrc.getSubReg())
+          << "\n     in "
+          << MI
+          << "     from "
+          << Copy);
+
+    narrowRegClass(MI, MOUse, NewUseReg, NewUseSubReg);
+
+    unsigned OrigUseReg = MOUse.getReg();
+    MOUse.setReg(NewUseReg);
+    MOUse.setSubReg(NewUseSubReg);
+
+    DEBUG(dbgs() << "MCP: After replacement: " << MI << "\n");
+
+    if (PreRegRewrite)
+      updateForwardedCopyLiveInterval(Copy, MI, OrigUseReg, NewUseReg,
+                                      NewUseSubReg);
+    else
+      for (MachineInstr &KMI :
+             make_range(Copy.getIterator(), std::next(MI.getIterator())))
+        KMI.clearRegisterKills(NewUseReg, TRI);
+
+    ++NumCopyForwards;
+    Changed = true;
+  }
+}
+
 void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
   DEBUG(dbgs() << "MCP: CopyPropagateBlock " << MBB.getName() << "\n");
 
@@ -198,12 +715,8 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
     ++I;
 
     if (MI->isCopy()) {
-      unsigned Def = MI->getOperand(0).getReg();
-      unsigned Src = MI->getOperand(1).getReg();
-
-      assert(!TargetRegisterInfo::isVirtualRegister(Def) &&
-             !TargetRegisterInfo::isVirtualRegister(Src) &&
-             "MachineCopyPropagation should be run after register allocation!");
+      unsigned Def = getPhysReg(MI->getOperand(0));
+      unsigned Src = getPhysReg(MI->getOperand(1));
 
       // The two copies cancel out and the source of the first copy
       // hasn't been overridden, eliminate the second one. e.g.
@@ -220,8 +733,16 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
       //  %ECX<def> = COPY %EAX
       // =>
       //  %ECX<def> = COPY %EAX
-      if (eraseIfRedundant(*MI, Def, Src) || eraseIfRedundant(*MI, Src, Def))
-        continue;
+      if (!PreRegRewrite)
+        if (eraseIfRedundant(*MI, Def, Src) || eraseIfRedundant(*MI, Src, Def))
+          continue;
+
+      forwardUses(*MI);
+
+      // Src may have been changed by forwardUses()
+      Src = getPhysReg(MI->getOperand(1));
+      unsigned DefClobber = getFullPhysReg(MI->getOperand(0));
+      unsigned SrcClobber = getFullPhysReg(MI->getOperand(1));
 
       // If Src is defined by a previous copy, the previous copy cannot be
       // eliminated.
@@ -238,7 +759,10 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
       DEBUG(dbgs() << "MCP: Copy is a deletion candidate: "; MI->dump());
 
       // Copy is now a candidate for deletion.
-      if (!MRI->isReserved(Def))
+      // Only look for dead COPYs if we're not running just before
+      // VirtRegRewriter, since presumably these COPYs will have already been
+      // removed.
+      if (!PreRegRewrite && !MRI->isReserved(Def))
         MaybeDeadCopies.insert(MI);
 
       // If 'Def' is previously source of another copy, then this earlier copy's
@@ -248,11 +772,11 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
       // %xmm2<def> = copy %xmm0
       // ...
       // %xmm2<def> = copy %xmm9
-      ClobberRegister(Def);
+      ClobberRegister(DefClobber);
       for (const MachineOperand &MO : MI->implicit_operands()) {
         if (!MO.isReg() || !MO.isDef())
           continue;
-        unsigned Reg = MO.getReg();
+        unsigned Reg = getFullPhysReg(MO);
         if (!Reg)
           continue;
         ClobberRegister(Reg);
@@ -267,13 +791,27 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
 
       // Remember source that's copied to Def. Once it's clobbered, then
       // it's no longer available for copy propagation.
-      RegList &DestList = SrcMap[Src];
-      if (!is_contained(DestList, Def))
-        DestList.push_back(Def);
+      RegList &DestList = SrcMap[SrcClobber];
+      if (!is_contained(DestList, DefClobber))
+        DestList.push_back(DefClobber);
 
       continue;
     }
 
+    // Clobber any earlyclobber regs first.
+    for (const MachineOperand &MO : MI->operands())
+      if (MO.isReg() && MO.isEarlyClobber()) {
+        unsigned Reg = getFullPhysReg(MO);
+        // If we have a tied earlyclobber, that means it is also read by this
+        // instruction, so we need to make sure we don't remove it as dead
+        // later.
+        if (MO.isTied())
+          ReadRegister(Reg);
+        ClobberRegister(Reg);
+      }
+
+    forwardUses(*MI);
+
     // Not a copy.
     SmallVector<unsigned, 2> Defs;
     const MachineOperand *RegMask = nullptr;
@@ -282,14 +820,11 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
         RegMask = &MO;
       if (!MO.isReg())
         continue;
-      unsigned Reg = MO.getReg();
+      unsigned Reg = getFullPhysReg(MO);
       if (!Reg)
         continue;
 
-      assert(!TargetRegisterInfo::isVirtualRegister(Reg) &&
-             "MachineCopyPropagation should be run after register allocation!");
-
-      if (MO.isDef()) {
+      if (MO.isDef() && !MO.isEarlyClobber()) {
         Defs.push_back(Reg);
         continue;
       } else if (MO.readsReg())
@@ -346,6 +881,8 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) {
   // since we don't want to trust live-in lists.
   if (MBB.succ_empty()) {
     for (MachineInstr *MaybeDead : MaybeDeadCopies) {
+      DEBUG(dbgs() << "MCP: Removing copy due to no live-out succ: ";
+            MaybeDead->dump());
       assert(!MRI->isReserved(MaybeDead->getOperand(0).getReg()));
       MaybeDead->eraseFromParent();
       Changed = true;
@@ -368,10 +905,16 @@ bool MachineCopyPropagation::runOnMachineFunction(MachineFunction &MF) {
   TRI = MF.getSubtarget().getRegisterInfo();
   TII = MF.getSubtarget().getInstrInfo();
   MRI = &MF.getRegInfo();
+  this->MF = &MF;
+  if (PreRegRewrite) {
+    Indexes = &getAnalysis<SlotIndexes>();
+    LIS = &getAnalysis<LiveIntervals>();
+    VRM = &getAnalysis<VirtRegMap>();
+  }
+  NoSubRegLiveness = !MRI->subRegLivenessEnabled();
 
   for (MachineBasicBlock &MBB : MF)
     CopyPropagateBlock(MBB);
 
   return Changed;
 }
-

lib/CodeGen/TargetPassConfig.cpp

@@ -88,6 +88,8 @@ static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden,
     cl::desc("Disable Codegen Prepare"));
 static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden,
     cl::desc("Disable Copy Propagation pass"));
+static cl::opt<bool> DisableCopyPropPreRegRewrite("disable-copyprop-prerewrite", cl::Hidden,
+    cl::desc("Disable Copy Propagation Pre-Register Re-write pass"));
 static cl::opt<bool> DisablePartialLibcallInlining("disable-partial-libcall-inlining",
     cl::Hidden, cl::desc("Disable Partial Libcall Inlining"));
 static cl::opt<bool> EnableImplicitNullChecks(
@@ -248,6 +250,9 @@ static IdentifyingPassPtr overridePass(AnalysisID StandardID,
   if (StandardID == &MachineCopyPropagationID)
     return applyDisable(TargetID, DisableCopyProp);
 
+  if (StandardID == &MachineCopyPropagationPreRegRewriteID)
+    return applyDisable(TargetID, DisableCopyPropPreRegRewrite);
+
   return TargetID;
 }
 
@@ -1059,6 +1064,10 @@ void TargetPassConfig::addOptimizedRegAlloc(FunctionPass *RegAllocPass) {
     // Allow targets to change the register assignments before rewriting.
     addPreRewrite();
 
+    // Copy propagate to forward register uses and try to eliminate COPYs that
+    // were not coalesced.
+    addPass(&MachineCopyPropagationPreRegRewriteID);
+
     // Finally rewrite virtual registers.
     addPass(&VirtRegRewriterID);
 

test/CodeGen/AArch64/aarch64-fold-lslfast.ll

@@ -9,7 +9,8 @@ define i16 @halfword(%struct.a* %ctx, i32 %xor72) nounwind {
 ; CHECK-LABEL: halfword:
 ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
 ; CHECK: ldrh [[REG1:w[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #1]
-; CHECK: strh [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #1]
+; CHECK: mov [[REG3:x[0-9]+]], [[REG2]]
+; CHECK: strh [[REG1]], [{{.*}}[[REG3]], [[REG]], lsl #1]
   %shr81 = lshr i32 %xor72, 9
   %conv82 = zext i32 %shr81 to i64
   %idxprom83 = and i64 %conv82, 255
@@ -24,7 +25,8 @@ define i32 @word(%struct.b* %ctx, i32 %xor72) nounwind {
 ; CHECK-LABEL: word:
 ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
 ; CHECK: ldr [[REG1:w[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #2]
-; CHECK: str [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #2]
+; CHECK: mov [[REG3:x[0-9]+]], [[REG2]]
+; CHECK: str [[REG1]], [{{.*}}[[REG3]], [[REG]], lsl #2]
   %shr81 = lshr i32 %xor72, 9
   %conv82 = zext i32 %shr81 to i64
   %idxprom83 = and i64 %conv82, 255
@@ -39,7 +41,8 @@ define i64 @doubleword(%struct.c* %ctx, i32 %xor72) nounwind {
 ; CHECK-LABEL: doubleword:
 ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8
 ; CHECK: ldr [[REG1:x[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #3]
-; CHECK: str [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #3]
+; CHECK: mov [[REG3:x[0-9]+]], [[REG2]]
+; CHECK: str [[REG1]], [{{.*}}[[REG3]], [[REG]], lsl #3]
   %shr81 = lshr i32 %xor72, 9
   %conv82 = zext i32 %shr81 to i64
   %idxprom83 = and i64 %conv82, 255

test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll

@@ -8,15 +8,9 @@ define <2 x i64> @bar(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
 ; CHECK: add.2d	v[[REG:[0-9]+]], v0, v1
 ; CHECK: add	d[[REG3:[0-9]+]], d[[REG]], d1
 ; CHECK: sub	d[[REG2:[0-9]+]], d[[REG]], d1
-; Without advanced copy optimization, we end up with cross register
-; banks copies that cannot be coalesced.
-; CHECK-NOOPT: fmov [[COPY_REG3:x[0-9]+]], d[[REG3]]
-; With advanced copy optimization, we end up with just one copy
-; to insert the computed high part into the V register. 
-; CHECK-OPT-NOT: fmov
+; CHECK-NOT: fmov
 ; CHECK: fmov [[COPY_REG2:x[0-9]+]], d[[REG2]]
-; CHECK-NOOPT: fmov d0, [[COPY_REG3]]
-; CHECK-OPT-NOT: fmov
+; CHECK-NOT: fmov
 ; CHECK: ins.d v0[1], [[COPY_REG2]]
 ; CHECK-NEXT: ret
 ;
@@ -24,11 +18,9 @@ define <2 x i64> @bar(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
 ; GENERIC: add	v[[REG:[0-9]+]].2d, v0.2d, v1.2d
 ; GENERIC: add	d[[REG3:[0-9]+]], d[[REG]], d1
 ; GENERIC: sub	d[[REG2:[0-9]+]], d[[REG]], d1
-; GENERIC-NOOPT: fmov [[COPY_REG3:x[0-9]+]], d[[REG3]]
-; GENERIC-OPT-NOT: fmov
+; GENERIC-NOT: fmov
 ; GENERIC: fmov [[COPY_REG2:x[0-9]+]], d[[REG2]]
-; GENERIC-NOOPT: fmov d0, [[COPY_REG3]]
-; GENERIC-OPT-NOT: fmov
+; GENERIC-NOT: fmov
 ; GENERIC: ins v0.d[1], [[COPY_REG2]]
 ; GENERIC-NEXT: ret
   %add = add <2 x i64> %a, %b

test/CodeGen/AArch64/arm64-zero-cycle-regmov.ll

@@ -4,8 +4,10 @@
 define i32 @t(i32 %a, i32 %b, i32 %c, i32 %d) nounwind ssp {
 entry:
 ; CHECK-LABEL: t:
-; CHECK: mov x0, [[REG1:x[0-9]+]]
-; CHECK: mov x1, [[REG2:x[0-9]+]]
+; CHECK: mov [[REG2:x[0-9]+]], x3
+; CHECK: mov [[REG1:x[0-9]+]], x2
+; CHECK: mov x0, x2
+; CHECK: mov x1, x3
 ; CHECK: bl _foo
 ; CHECK: mov x0, [[REG1]]
 ; CHECK: mov x1, [[REG2]]

test/CodeGen/AArch64/f16-instructions.ll

@@ -350,7 +350,7 @@ else:
 
 ; CHECK-LABEL: test_phi:
 ; CHECK: mov  x[[PTR:[0-9]+]], x0
-; CHECK: ldr  h[[AB:[0-9]+]], [x[[PTR]]]
+; CHECK: ldr  h[[AB:[0-9]+]], [x0]
 ; CHECK: [[LOOP:LBB[0-9_]+]]:
 ; CHECK: mov.16b  v[[R:[0-9]+]], v[[AB]]
 ; CHECK: ldr  h[[AB]], [x[[PTR]]]

test/CodeGen/AArch64/flags-multiuse.ll

@@ -17,6 +17,9 @@ define i32 @test_multiflag(i32 %n, i32 %m, i32 %o) {
   %val = zext i1 %test to i32
 ; CHECK: cset {{[xw][0-9]+}}, ne
 
+; CHECK: mov [[RHSCOPY:w[0-9]+]], [[RHS]]
+; CHECK: mov [[LHSCOPY:w[0-9]+]], [[LHS]]
+
   store i32 %val, i32* @var
 
   call void @bar()
@@ -25,7 +28,7 @@ define i32 @test_multiflag(i32 %n, i32 %m, i32 %o) {
   ; Currently, the comparison is emitted again. An MSR/MRS pair would also be
   ; acceptable, but assuming the call preserves NZCV is not.
   br i1 %test, label %iftrue, label %iffalse
-; CHECK: cmp [[LHS]], [[RHS]]
+; CHECK: cmp [[LHSCOPY]], [[RHSCOPY]]
 ; CHECK: b.eq
 
 iftrue:

test/CodeGen/AArch64/merge-store-dependency.ll

@@ -8,10 +8,9 @@
 define void @test(%struct1* %fde, i32 %fd, void (i32, i32, i8*)* %func, i8* %arg)  {
 ;CHECK-LABEL: test
 entry:
-; A53: mov [[DATA:w[0-9]+]], w1
 ; A53: str q{{[0-9]+}}, {{.*}}
 ; A53: str q{{[0-9]+}}, {{.*}}
-; A53: str [[DATA]], {{.*}}
+; A53: str w1, {{.*}}
 
   %0 = bitcast %struct1* %fde to i8*
   tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 40, i32 8, i1 false)

test/CodeGen/AArch64/neg-imm.ll

@@ -7,8 +7,8 @@ declare void @foo(i32)
 define void @test(i32 %px) {
 ; CHECK_LABEL: test:
 ; CHECK_LABEL: %entry
-; CHECK: subs
-; CHECK-NEXT: csel
+; CHECK: subs [[REG0:w[0-9]+]],
+; CHECK: csel {{w[0-9]+}}, wzr, [[REG0]]
 entry:
   %sub = add nsw i32 %px, -1
   %cmp = icmp slt i32 %px, 1

test/CodeGen/AMDGPU/callee-special-input-sgprs.ll

@@ -547,16 +547,16 @@ define void @func_use_every_sgpr_input_call_use_workgroup_id_xyz() #1 {
 ; GCN: s_mov_b32 s5, s32
 ; GCN: s_add_u32 s32, s32, 0x300
 
-; GCN-DAG: s_mov_b32 [[SAVE_X:s[0-9]+]], s14
-; GCN-DAG: s_mov_b32 [[SAVE_Y:s[0-9]+]], s15
-; GCN-DAG: s_mov_b32 [[SAVE_Z:s[0-9]+]], s16
+; GCN-DAG: s_mov_b32 [[SAVE_X:s[0-57-9][0-9]*]], s14
+; GCN-DAG: s_mov_b32 [[SAVE_Y:s[0-68-9][0-9]*]], s15
+; GCN-DAG: s_mov_b32 [[SAVE_Z:s[0-79][0-9]*]], s16
 ; GCN-DAG: s_mov_b64 {{s\[[0-9]+:[0-9]+\]}}, s[6:7]
 ; GCN-DAG: s_mov_b64 {{s\[[0-9]+:[0-9]+\]}}, s[8:9]
 ; GCN-DAG: s_mov_b64 {{s\[[0-9]+:[0-9]+\]}}, s[10:11]
 
-; GCN-DAG: s_mov_b32 s6, [[SAVE_X]]
-; GCN-DAG: s_mov_b32 s7, [[SAVE_Y]]
-; GCN-DAG: s_mov_b32 s8, [[SAVE_Z]]
+; GCN-DAG: s_mov_b32 s6, s14
+; GCN-DAG: s_mov_b32 s7, s15
+; GCN-DAG: s_mov_b32 s8, s16
 ; GCN: s_swappc_b64
 
 ; GCN: buffer_store_dword v{{[0-9]+}}, off, s[0:3], s5 offset:4

test/CodeGen/AMDGPU/ret.ll

@@ -2,10 +2,10 @@
 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
 
 ; GCN-LABEL: {{^}}vgpr:
-; GCN: v_mov_b32_e32 v1, v0
-; GCN-DAG: v_add_f32_e32 v0, 1.0, v1
-; GCN-DAG: exp mrt0 v1, v1, v1, v1 done vm
+; GCN-DAG: v_mov_b32_e32 v1, v0
+; GCN-DAG: exp mrt0 v0, v0, v0, v0 done vm
 ; GCN: s_waitcnt expcnt(0)
+; GCN: v_add_f32_e32 v0, 1.0, v0
 ; GCN-NOT: s_endpgm
 define amdgpu_vs { float, float } @vgpr([9 x <16 x i8>] addrspace(2)* byval %arg, i32 inreg %arg1, i32 inreg %arg2, float %arg3) #0 {
 bb:
@@ -204,13 +204,13 @@ bb:
 }
 
 ; GCN-LABEL: {{^}}both:
-; GCN: v_mov_b32_e32 v1, v0
-; GCN-DAG: exp mrt0 v1, v1, v1, v1 done vm
-; GCN-DAG: v_add_f32_e32 v0, 1.0, v1
-; GCN-DAG: s_add_i32 s0, s3, 2
+; GCN-DAG: exp mrt0 v0, v0, v0, v0 done vm
+; GCN-DAG: v_mov_b32_e32 v1, v0
 ; GCN-DAG: s_mov_b32 s1, s2
-; GCN: s_mov_b32 s2, s3
 ; GCN: s_waitcnt expcnt(0)
+; GCN: v_add_f32_e32 v0, 1.0, v0
+; GCN-DAG: s_add_i32 s0, s3, 2
+; GCN-DAG: s_mov_b32 s2, s3
 ; GCN-NOT: s_endpgm
 define amdgpu_vs { float, i32, float, i32, i32 } @both([9 x <16 x i8>] addrspace(2)* byval %arg, i32 inreg %arg1, i32 inreg %arg2, float %arg3) #0 {
 bb:

test/CodeGen/ARM/atomic-op.ll

@@ -287,7 +287,8 @@ define i32 @test_cmpxchg_fail_order(i32 *%addr, i32 %desired, i32 %new) {
 
   %pair = cmpxchg i32* %addr, i32 %desired, i32 %new seq_cst monotonic
   %oldval = extractvalue { i32, i1 } %pair, 0
-; CHECK-ARMV7:     ldrex   [[OLDVAL:r[0-9]+]], [r[[ADDR:[0-9]+]]]
+; CHECK-ARMV7:     mov     r[[ADDR:[0-9]+]], r0
+; CHECK-ARMV7:     ldrex   [[OLDVAL:r[0-9]+]], [r0]
 ; CHECK-ARMV7:     cmp     [[OLDVAL]], r1
 ; CHECK-ARMV7:     bne     [[FAIL_BB:\.?LBB[0-9]+_[0-9]+]]
 ; CHECK-ARMV7:     dmb ish
@@ -305,7 +306,8 @@ define i32 @test_cmpxchg_fail_order(i32 *%addr, i32 %desired, i32 %new) {
 ; CHECK-ARMV7:     dmb     ish
 ; CHECK-ARMV7:     bx      lr
 
-; CHECK-T2:     ldrex   [[OLDVAL:r[0-9]+]], [r[[ADDR:[0-9]+]]]
+; CHECK-T2:     mov     r[[ADDR:[0-9]+]], r0
+; CHECK-T2:     ldrex   [[OLDVAL:r[0-9]+]], [r0]
 ; CHECK-T2:     cmp     [[OLDVAL]], r1
 ; CHECK-T2:     bne     [[FAIL_BB:\.?LBB.*]]
 ; CHECK-T2:     dmb ish

test/CodeGen/ARM/swifterror.ll

@@ -181,7 +181,7 @@ define float @foo_loop(%swift_error** swifterror %error_ptr_ref, i32 %cc, float
 ; CHECK-APPLE: beq
 ; CHECK-APPLE: mov r0, #16
 ; CHECK-APPLE: malloc
-; CHECK-APPLE: strb r{{.*}}, [{{.*}}[[ID]], #8]
+; CHECK-APPLE: strb r{{.*}}, [r0, #8]
 ; CHECK-APPLE: ble
 ; CHECK-APPLE: mov r8, [[ID]]
 

test/CodeGen/Mips/llvm-ir/sub.ll

@@ -165,7 +165,7 @@ entry:
 ; MMR3: subu16   $5, $[[T19]], $[[T20]]
 
 ; MMR6: move     $[[T0:[0-9]+]], $7
-; MMR6: sw       $[[T0]], 8($sp)
+; MMR6: sw       $7, 8($sp)
 ; MMR6: move     $[[T1:[0-9]+]], $5
 ; MMR6: sw       $4, 12($sp)
 ; MMR6: lw       $[[T2:[0-9]+]], 48($sp)

test/CodeGen/PowerPC/fma-mutate.ll

@@ -14,7 +14,8 @@ define double @foo3(double %a) nounwind {
   ret double %r
 
 ; CHECK: @foo3
-; CHECK: xsnmsubadp [[REG:[0-9]+]], {{[0-9]+}}, [[REG]]
+; CHECK: fmr [[REG:[0-9]+]], [[REG2:[0-9]+]]
+; CHECK: xsnmsubadp [[REG]], {{[0-9]+}}, [[REG2]]
 ; CHECK: xsmaddmdp
 ; CHECK: xsmaddadp
 }

test/CodeGen/PowerPC/inlineasm-i64-reg.ll

@@ -75,7 +75,7 @@ entry:
 
 ; CHECK-DAG: mr [[REG:[0-9]+]], 3
 ; CHECK-DAG: li 0, 1076
-; CHECK:     stw [[REG]],
+; CHECK-DAG:     stw 3,
 
 ; CHECK:     #APP
 ; CHECK:     sc

test/CodeGen/PowerPC/tail-dup-layout.ll

@@ -23,7 +23,7 @@ target triple = "powerpc64le-grtev4-linux-gnu"
 ;CHECK-LABEL: straight_test:
 ; test1 may have been merged with entry
 ;CHECK: mr [[TAGREG:[0-9]+]], 3
-;CHECK: andi. {{[0-9]+}}, [[TAGREG]], 1
+;CHECK: andi. {{[0-9]+}}, [[TAGREG:[0-9]+]], 1
 ;CHECK-NEXT: bc 12, 1, .[[OPT1LABEL:[_0-9A-Za-z]+]]
 ;CHECK-NEXT: # %test2
 ;CHECK-NEXT: rlwinm. {{[0-9]+}}, [[TAGREG]], 0, 30, 30

test/CodeGen/SPARC/atomics.ll

@@ -235,8 +235,9 @@ entry:
 
 ; CHECK-LABEL: test_load_add_i32
 ; CHECK: membar
-; CHECK: add [[V:%[gilo][0-7]]], %o1, [[U:%[gilo][0-7]]]
-; CHECK: cas [%o0], [[V]], [[U]]
+; CHECK: mov [[U:%[gilo][0-7]]], [[V:%[gilo][0-7]]]
+; CHECK: add [[U:%[gilo][0-7]]], %o1, [[V2:%[gilo][0-7]]]
+; CHECK: cas [%o0], [[V]], [[V2]]
 ; CHECK: membar
 define zeroext i32 @test_load_add_i32(i32* %p, i32 zeroext %v) {
 entry:

test/CodeGen/Thumb/thumb-shrink-wrapping.ll

@@ -598,7 +598,7 @@ declare void @abort() #0
 define i32 @b_to_bx(i32 %value) {
 ; CHECK-LABEL: b_to_bx:
 ; DISABLE: push {r7, lr}
-; CHECK: cmp r1, #49
+; CHECK: cmp r0, #49
 ; CHECK-NEXT: bgt [[ELSE_LABEL:LBB[0-9_]+]]
 ; ENABLE: push {r7, lr}
 

test/CodeGen/X86/2006-03-01-InstrSchedBug.ll

@@ -7,7 +7,7 @@ define i32 @f(i32 %a, i32 %b) {
 ; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %eax
 ; CHECK-NEXT:    movl {{[0-9]+}}(%esp), %ecx
 ; CHECK-NEXT:    movl %ecx, %edx
-; CHECK-NEXT:    imull %edx, %edx
+; CHECK-NEXT:    imull %ecx, %edx
 ; CHECK-NEXT:    imull %eax, %ecx
 ; CHECK-NEXT:    imull %eax, %eax
 ; CHECK-NEXT:    addl %edx, %eax

test/CodeGen/X86/arg-copy-elide.ll

@@ -106,7 +106,7 @@ entry:
 ; CHECK-DAG: movl %edx, %[[r1:[^ ]*]]
 ; CHECK-DAG: movl 8(%ebp), %[[r2:[^ ]*]]
 ; CHECK-DAG: movl %[[r2]], 4(%esp)
-; CHECK-DAG: movl %[[r1]], (%esp)
+; CHECK-DAG: movl %edx, (%esp)
 ; CHECK: movl %esp, %[[reg:[^ ]*]]
 ; CHECK: pushl %[[reg]]
 ; CHECK: calll _addrof_i64

test/CodeGen/X86/avg.ll

@@ -407,7 +407,6 @@ define void @avg_v64i8(<64 x i8>* %a, <64 x i8>* %b) {
 ; SSE2-NEXT:    pand %xmm0, %xmm2
 ; SSE2-NEXT:    packuswb %xmm1, %xmm2
 ; SSE2-NEXT:    packuswb %xmm10, %xmm2
-; SSE2-NEXT:    movdqa %xmm2, %xmm1
 ; SSE2-NEXT:    psrld $1, %xmm4
 ; SSE2-NEXT:    psrld $1, %xmm12
 ; SSE2-NEXT:    pand %xmm0, %xmm12
@@ -444,7 +443,7 @@ define void @avg_v64i8(<64 x i8>* %a, <64 x i8>* %b) {
 ; SSE2-NEXT:    movdqu %xmm7, (%rax)
 ; SSE2-NEXT:    movdqu %xmm11, (%rax)
 ; SSE2-NEXT:    movdqu %xmm13, (%rax)
-; SSE2-NEXT:    movdqu %xmm1, (%rax)
+; SSE2-NEXT:    movdqu %xmm2, (%rax)
 ; SSE2-NEXT:    retq
 ;
 ; AVX1-LABEL: avg_v64i8:

test/CodeGen/X86/avx-load-store.ll

@@ -12,11 +12,11 @@ define void @test_256_load(double* nocapture %d, float* nocapture %f, <4 x i64>*
 ; CHECK-NEXT:    movq %rdx, %r14
 ; CHECK-NEXT:    movq %rsi, %r15
 ; CHECK-NEXT:    movq %rdi, %rbx
-; CHECK-NEXT:    vmovaps (%rbx), %ymm0
+; CHECK-NEXT:    vmovaps (%rdi), %ymm0
 ; CHECK-NEXT:    vmovups %ymm0, {{[0-9]+}}(%rsp) # 32-byte Spill
-; CHECK-NEXT:    vmovaps (%r15), %ymm1
+; CHECK-NEXT:    vmovaps (%rsi), %ymm1
 ; CHECK-NEXT:    vmovups %ymm1, {{[0-9]+}}(%rsp) # 32-byte Spill
-; CHECK-NEXT:    vmovaps (%r14), %ymm2
+; CHECK-NEXT:    vmovaps (%rdx), %ymm2
 ; CHECK-NEXT:    vmovups %ymm2, (%rsp) # 32-byte Spill
 ; CHECK-NEXT:    callq dummy
 ; CHECK-NEXT:    vmovups {{[0-9]+}}(%rsp), %ymm0 # 32-byte Reload

test/CodeGen/X86/avx512-bugfix-25270.ll

@@ -9,10 +9,10 @@ define void @bar__512(<16 x i32>* %var) #0 {
 ; CHECK-NEXT:    pushq %rbx
 ; CHECK-NEXT:    subq $112, %rsp
 ; CHECK-NEXT:    movq %rdi, %rbx
-; CHECK-NEXT:    vmovups (%rbx), %zmm0
+; CHECK-NEXT:    vmovups (%rdi), %zmm0
 ; CHECK-NEXT:    vmovups %zmm0, (%rsp) ## 64-byte Spill
 ; CHECK-NEXT:    vbroadcastss {{.*}}(%rip), %zmm1
-; CHECK-NEXT:    vmovaps %zmm1, (%rbx)
+; CHECK-NEXT:    vmovaps %zmm1, (%rdi)
 ; CHECK-NEXT:    callq _Print__512
 ; CHECK-NEXT:    vmovups (%rsp), %zmm0 ## 64-byte Reload
 ; CHECK-NEXT:    callq _Print__512

test/CodeGen/X86/avx512-calling-conv.ll

@@ -466,7 +466,7 @@ define i32 @test12(i32 %a1, i32 %a2, i32 %b1) {
 ; KNL_X32-NEXT:    movl %edi, (%esp)
 ; KNL_X32-NEXT:    calll _test11
 ; KNL_X32-NEXT:    movl %eax, %ebx
-; KNL_X32-NEXT:    movzbl %bl, %eax
+; KNL_X32-NEXT:    movzbl %al, %eax
 ; KNL_X32-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; KNL_X32-NEXT:    movl %esi, {{[0-9]+}}(%esp)
 ; KNL_X32-NEXT:    movl %edi, (%esp)

test/CodeGen/X86/avx512-mask-op.ll

@@ -1171,7 +1171,6 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; KNL-NEXT:    kmovw %esi, %k0
 ; KNL-NEXT:    kshiftlw $7, %k0, %k2
 ; KNL-NEXT:    kshiftrw $15, %k2, %k2
-; KNL-NEXT:    kmovw %k2, %eax
 ; KNL-NEXT:    kshiftlw $6, %k0, %k0
 ; KNL-NEXT:    kshiftrw $15, %k0, %k0
 ; KNL-NEXT:    kmovw %k0, %ecx
@@ -1184,8 +1183,7 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; KNL-NEXT:    vptestmq %zmm0, %zmm0, %k0
 ; KNL-NEXT:    kshiftlw $1, %k0, %k0
 ; KNL-NEXT:    kshiftrw $1, %k0, %k0
-; KNL-NEXT:    kmovw %eax, %k1
-; KNL-NEXT:    kshiftlw $7, %k1, %k1
+; KNL-NEXT:    kshiftlw $7, %k2, %k1
 ; KNL-NEXT:    korw %k1, %k0, %k1
 ; KNL-NEXT:    vpternlogq $255, %zmm0, %zmm0, %zmm0 {%k1} {z}
 ; KNL-NEXT:    vpmovqw %zmm0, %xmm0
@@ -1197,20 +1195,16 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; SKX-NEXT:    kmovd %esi, %k1
 ; SKX-NEXT:    kshiftlw $7, %k1, %k2
 ; SKX-NEXT:    kshiftrw $15, %k2, %k2
-; SKX-NEXT:    kmovd %k2, %eax
 ; SKX-NEXT:    kshiftlw $6, %k1, %k1
 ; SKX-NEXT:    kshiftrw $15, %k1, %k1
-; SKX-NEXT:    kmovd %k1, %ecx
 ; SKX-NEXT:    vpmovm2q %k0, %zmm0
-; SKX-NEXT:    kmovd %ecx, %k0
-; SKX-NEXT:    vpmovm2q %k0, %zmm1
+; SKX-NEXT:    vpmovm2q %k1, %zmm1
 ; SKX-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [0,1,2,3,4,5,8,7]
 ; SKX-NEXT:    vpermi2q %zmm1, %zmm0, %zmm2
 ; SKX-NEXT:    vpmovq2m %zmm2, %k0
 ; SKX-NEXT:    kshiftlb $1, %k0, %k0
 ; SKX-NEXT:    kshiftrb $1, %k0, %k0
-; SKX-NEXT:    kmovd %eax, %k1
-; SKX-NEXT:    kshiftlb $7, %k1, %k1
+; SKX-NEXT:    kshiftlb $7, %k2, %k1
 ; SKX-NEXT:    korb %k1, %k0, %k0
 ; SKX-NEXT:    vpmovm2w %k0, %xmm0
 ; SKX-NEXT:    vzeroupper
@@ -1222,7 +1216,6 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; AVX512BW-NEXT:    kmovd %esi, %k0
 ; AVX512BW-NEXT:    kshiftlw $7, %k0, %k2
 ; AVX512BW-NEXT:    kshiftrw $15, %k2, %k2
-; AVX512BW-NEXT:    kmovd %k2, %eax
 ; AVX512BW-NEXT:    kshiftlw $6, %k0, %k0
 ; AVX512BW-NEXT:    kshiftrw $15, %k0, %k0
 ; AVX512BW-NEXT:    kmovd %k0, %ecx
@@ -1235,8 +1228,7 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; AVX512BW-NEXT:    vptestmq %zmm0, %zmm0, %k0
 ; AVX512BW-NEXT:    kshiftlw $1, %k0, %k0
 ; AVX512BW-NEXT:    kshiftrw $1, %k0, %k0
-; AVX512BW-NEXT:    kmovd %eax, %k1
-; AVX512BW-NEXT:    kshiftlw $7, %k1, %k1
+; AVX512BW-NEXT:    kshiftlw $7, %k2, %k1
 ; AVX512BW-NEXT:    korw %k1, %k0, %k0
 ; AVX512BW-NEXT:    vpmovm2w %k0, %zmm0
 ; AVX512BW-NEXT:    ## kill: %XMM0<def> %XMM0<kill> %ZMM0<kill>
@@ -1249,20 +1241,16 @@ define <8 x i1> @test18(i8 %a, i16 %y) {
 ; AVX512DQ-NEXT:    kmovw %esi, %k1
 ; AVX512DQ-NEXT:    kshiftlw $7, %k1, %k2
 ; AVX512DQ-NEXT:    kshiftrw $15, %k2, %k2
-; AVX512DQ-NEXT:    kmovw %k2, %eax
 ; AVX512DQ-NEXT:    kshiftlw $6, %k1, %k1
 ; AVX512DQ-NEXT:    kshiftrw $15, %k1, %k1
-; AVX512DQ-NEXT:    kmovw %k1, %ecx
 ; AVX512DQ-NEXT:    vpmovm2q %k0, %zmm0
-; AVX512DQ-NEXT:    kmovw %ecx, %k0
-; AVX512DQ-NEXT:    vpmovm2q %k0, %zmm1
+; AVX512DQ-NEXT:    vpmovm2q %k1, %zmm1
 ; AVX512DQ-NEXT:    vmovdqa64 {{.*#+}} zmm2 = [0,1,2,3,4,5,8,7]
 ; AVX512DQ-NEXT:    vpermi2q %zmm1, %zmm0, %zmm2
 ; AVX512DQ-NEXT:    vpmovq2m %zmm2, %k0
 ; AVX512DQ-NEXT:    kshiftlb $1, %k0, %k0
 ; AVX512DQ-NEXT:    kshiftrb $1, %k0, %k0
-; AVX512DQ-NEXT:    kmovw %eax, %k1
-; AVX512DQ-NEXT:    kshiftlb $7, %k1, %k1
+; AVX512DQ-NEXT:    kshiftlb $7, %k2, %k1
 ; AVX512DQ-NEXT:    korb %k1, %k0, %k0
 ; AVX512DQ-NEXT:    vpmovm2q %k0, %zmm0
 ; AVX512DQ-NEXT:    vpmovqw %zmm0, %xmm0

test/CodeGen/X86/avx512bw-intrinsics-upgrade.ll

@@ -2005,7 +2005,7 @@ define i64 @test_mask_cmp_b_512(<64 x i8> %a0, <64 x i8> %a1, i64 %mask) {
 ; AVX512F-32-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm2
 ; AVX512F-32-NEXT:    vshufi64x2 {{.*#+}} zmm0 = zmm2[0,1,2,3],zmm0[4,5,6,7]
 ; AVX512F-32-NEXT:    vpmovb2m %zmm0, %k0
-; AVX512F-32-NEXT:    movl %esi, %eax
+; AVX512F-32-NEXT:    movl %ecx, %eax
 ; AVX512F-32-NEXT:    shrl $30, %eax
 ; AVX512F-32-NEXT:    kmovd %eax, %k1
 ; AVX512F-32-NEXT:    vpmovm2b %k1, %zmm0
@@ -2016,7 +2016,7 @@ define i64 @test_mask_cmp_b_512(<64 x i8> %a0, <64 x i8> %a1, i64 %mask) {
 ; AVX512F-32-NEXT:    vpblendvb %ymm2, %ymm0, %ymm1, %ymm1
 ; AVX512F-32-NEXT:    vshufi64x2 {{.*#+}} zmm0 = zmm1[0,1,2,3],zmm0[4,5,6,7]
 ; AVX512F-32-NEXT:    vpmovb2m %zmm0, %k0
-; AVX512F-32-NEXT:    movl %esi, %eax
+; AVX512F-32-NEXT:    movl %ecx, %eax
 ; AVX512F-32-NEXT:    shrl $31, %eax
 ; AVX512F-32-NEXT:    kmovd %eax, %k1
 ; AVX512F-32-NEXT:    vpmovm2b %k1, %zmm0
@@ -2891,7 +2891,7 @@ define i64 @test_mask_x86_avx512_ucmp_b_512(<64 x i8> %a0, <64 x i8> %a1, i64 %m
 ; AVX512F-32-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm2
 ; AVX512F-32-NEXT:    vshufi64x2 {{.*#+}} zmm0 = zmm2[0,1,2,3],zmm0[4,5,6,7]
 ; AVX512F-32-NEXT:    vpmovb2m %zmm0, %k0
-; AVX512F-32-NEXT:    movl %esi, %eax
+; AVX512F-32-NEXT:    movl %ecx, %eax
 ; AVX512F-32-NEXT:    shrl $30, %eax
 ; AVX512F-32-NEXT:    kmovd %eax, %k1
 ; AVX512F-32-NEXT:    vpmovm2b %k1, %zmm0
@@ -2902,7 +2902,7 @@ define i64 @test_mask_x86_avx512_ucmp_b_512(<64 x i8> %a0, <64 x i8> %a1, i64 %m
 ; AVX512F-32-NEXT:    vpblendvb %ymm2, %ymm0, %ymm1, %ymm1
 ; AVX512F-32-NEXT:    vshufi64x2 {{.*#+}} zmm0 = zmm1[0,1,2,3],zmm0[4,5,6,7]
 ; AVX512F-32-NEXT:    vpmovb2m %zmm0, %k0
-; AVX512F-32-NEXT:    movl %esi, %eax
+; AVX512F-32-NEXT:    movl %ecx, %eax
 ; AVX512F-32-NEXT:    shrl $31, %eax
 ; AVX512F-32-NEXT:    kmovd %eax, %k1
 ; AVX512F-32-NEXT:    vpmovm2b %k1, %zmm0

test/CodeGen/X86/buildvec-insertvec.ll

@@ -38,7 +38,7 @@ define <4 x float> @test_negative_zero_1(<4 x float> %A) {
 ; SSE2-LABEL: test_negative_zero_1:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movaps %xmm0, %xmm1
-; SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm0[1],xmm1[1]
 ; SSE2-NEXT:    movss {{.*#+}} xmm2 = mem[0],zero,zero,zero
 ; SSE2-NEXT:    unpcklps {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
 ; SSE2-NEXT:    xorps %xmm2, %xmm2

test/CodeGen/X86/combine-fcopysign.ll

@@ -231,8 +231,8 @@ define <4 x double> @combine_vec_fcopysign_fpext_sgn(<4 x double> %x, <4 x float
 ; SSE-NEXT:    cvtss2sd %xmm2, %xmm4
 ; SSE-NEXT:    movshdup {{.*#+}} xmm5 = xmm2[1,1,3,3]
 ; SSE-NEXT:    movaps %xmm2, %xmm6
-; SSE-NEXT:    movhlps {{.*#+}} xmm6 = xmm6[1,1]
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1,2,3]
+; SSE-NEXT:    movhlps {{.*#+}} xmm6 = xmm2[1],xmm6[1]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1],xmm2[2,3]
 ; SSE-NEXT:    movaps {{.*#+}} xmm7
 ; SSE-NEXT:    movaps %xmm0, %xmm2
 ; SSE-NEXT:    andps %xmm7, %xmm2
@@ -247,7 +247,7 @@ define <4 x double> @combine_vec_fcopysign_fpext_sgn(<4 x double> %x, <4 x float
 ; SSE-NEXT:    orps %xmm0, %xmm4
 ; SSE-NEXT:    unpcklpd {{.*#+}} xmm2 = xmm2[0],xmm4[0]
 ; SSE-NEXT:    movaps %xmm1, %xmm0
-; SSE-NEXT:    movhlps {{.*#+}} xmm0 = xmm0[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm0 = xmm1[1],xmm0[1]
 ; SSE-NEXT:    andps %xmm7, %xmm0
 ; SSE-NEXT:    cvtss2sd %xmm3, %xmm3
 ; SSE-NEXT:    andps %xmm8, %xmm3
@@ -294,7 +294,7 @@ define <4 x float> @combine_vec_fcopysign_fptrunc_sgn(<4 x float> %x, <4 x doubl
 ; SSE-NEXT:    orps %xmm6, %xmm1
 ; SSE-NEXT:    unpcklps {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
 ; SSE-NEXT:    movaps %xmm3, %xmm1
-; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm3[1],xmm1[1]
 ; SSE-NEXT:    andps %xmm5, %xmm1
 ; SSE-NEXT:    xorps %xmm6, %xmm6
 ; SSE-NEXT:    cvtsd2ss %xmm2, %xmm6

test/CodeGen/X86/complex-fastmath.ll

@@ -14,7 +14,7 @@ define <2 x float> @complex_square_f32(<2 x float>) #0 {
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movshdup {{.*#+}} xmm1 = xmm0[1,1,3,3]
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    addss %xmm2, %xmm2
+; SSE-NEXT:    addss %xmm0, %xmm2
 ; SSE-NEXT:    mulss %xmm1, %xmm2
 ; SSE-NEXT:    mulss %xmm0, %xmm0
 ; SSE-NEXT:    mulss %xmm1, %xmm1
@@ -58,9 +58,9 @@ define <2 x double> @complex_square_f64(<2 x double>) #0 {
 ; SSE-LABEL: complex_square_f64:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm0[1],xmm1[1]
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    addsd %xmm2, %xmm2
+; SSE-NEXT:    addsd %xmm0, %xmm2
 ; SSE-NEXT:    mulsd %xmm1, %xmm2
 ; SSE-NEXT:    mulsd %xmm0, %xmm0
 ; SSE-NEXT:    mulsd %xmm1, %xmm1
@@ -161,9 +161,9 @@ define <2 x double> @complex_mul_f64(<2 x double>, <2 x double>) #0 {
 ; SSE-LABEL: complex_mul_f64:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm0[1],xmm2[1]
 ; SSE-NEXT:    movaps %xmm1, %xmm3
-; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm3[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm1[1],xmm3[1]
 ; SSE-NEXT:    movaps %xmm3, %xmm4
 ; SSE-NEXT:    mulsd %xmm0, %xmm4
 ; SSE-NEXT:    mulsd %xmm1, %xmm0

test/CodeGen/X86/divide-by-constant.ll

@@ -318,7 +318,7 @@ define i64 @PR23590(i64 %x) nounwind {
 ; X64:       # BB#0: # %entry
 ; X64-NEXT:    movq %rdi, %rcx
 ; X64-NEXT:    movabsq $6120523590596543007, %rdx # imm = 0x54F077C718E7C21F
-; X64-NEXT:    movq %rcx, %rax
+; X64-NEXT:    movq %rdi, %rax
 ; X64-NEXT:    mulq %rdx
 ; X64-NEXT:    shrq $12, %rdx
 ; X64-NEXT:    imulq $12345, %rdx, %rax # imm = 0x3039

test/CodeGen/X86/fmaxnum.ll

@@ -18,7 +18,7 @@ declare <8 x double> @llvm.maxnum.v8f64(<8 x double>, <8 x double>)
 
 ; CHECK-LABEL: @test_fmaxf
 ; SSE:         movaps %xmm0, %xmm2
-; SSE-NEXT:    cmpunordss %xmm2, %xmm2
+; SSE-NEXT:    cmpunordss %xmm0, %xmm2
 ; SSE-NEXT:    movaps %xmm2, %xmm3
 ; SSE-NEXT:    andps %xmm1, %xmm3
 ; SSE-NEXT:    maxss %xmm0, %xmm1
@@ -47,7 +47,7 @@ define float @test_fmaxf_minsize(float %x, float %y) minsize {
 
 ; CHECK-LABEL: @test_fmax
 ; SSE:         movapd %xmm0, %xmm2
-; SSE-NEXT:    cmpunordsd %xmm2, %xmm2
+; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
 ; SSE-NEXT:    movapd %xmm2, %xmm3
 ; SSE-NEXT:    andpd %xmm1, %xmm3
 ; SSE-NEXT:    maxsd %xmm0, %xmm1
@@ -74,7 +74,7 @@ define x86_fp80 @test_fmaxl(x86_fp80 %x, x86_fp80 %y) {
 
 ; CHECK-LABEL: @test_intrinsic_fmaxf
 ; SSE:         movaps %xmm0, %xmm2
-; SSE-NEXT:    cmpunordss %xmm2, %xmm2
+; SSE-NEXT:    cmpunordss %xmm0, %xmm2
 ; SSE-NEXT:    movaps %xmm2, %xmm3
 ; SSE-NEXT:    andps %xmm1, %xmm3
 ; SSE-NEXT:    maxss %xmm0, %xmm1
@@ -95,7 +95,7 @@ define float @test_intrinsic_fmaxf(float %x, float %y) {
 
 ; CHECK-LABEL: @test_intrinsic_fmax
 ; SSE:         movapd %xmm0, %xmm2
-; SSE-NEXT:    cmpunordsd %xmm2, %xmm2
+; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
 ; SSE-NEXT:    movapd %xmm2, %xmm3
 ; SSE-NEXT:    andpd %xmm1, %xmm3
 ; SSE-NEXT:    maxsd %xmm0, %xmm1

test/CodeGen/X86/fminnum.ll

@@ -18,7 +18,7 @@ declare <8 x double> @llvm.minnum.v8f64(<8 x double>, <8 x double>)
 
 ; CHECK-LABEL: @test_fminf
 ; SSE:         movaps %xmm0, %xmm2
-; SSE-NEXT:    cmpunordss %xmm2, %xmm2
+; SSE-NEXT:    cmpunordss %xmm0, %xmm2
 ; SSE-NEXT:    movaps %xmm2, %xmm3
 ; SSE-NEXT:    andps %xmm1, %xmm3
 ; SSE-NEXT:    minss %xmm0, %xmm1
@@ -40,7 +40,7 @@ define float @test_fminf(float %x, float %y) {
 
 ; CHECK-LABEL: @test_fmin
 ; SSE:         movapd %xmm0, %xmm2
-; SSE-NEXT:    cmpunordsd %xmm2, %xmm2
+; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
 ; SSE-NEXT:    movapd %xmm2, %xmm3
 ; SSE-NEXT:    andpd %xmm1, %xmm3
 ; SSE-NEXT:    minsd %xmm0, %xmm1
@@ -67,7 +67,7 @@ define x86_fp80 @test_fminl(x86_fp80 %x, x86_fp80 %y) {
 
 ; CHECK-LABEL: @test_intrinsic_fminf
 ; SSE:         movaps %xmm0, %xmm2
-; SSE-NEXT:    cmpunordss %xmm2, %xmm2
+; SSE-NEXT:    cmpunordss %xmm0, %xmm2
 ; SSE-NEXT:    movaps %xmm2, %xmm3
 ; SSE-NEXT:    andps %xmm1, %xmm3
 ; SSE-NEXT:    minss %xmm0, %xmm1
@@ -87,7 +87,7 @@ define float @test_intrinsic_fminf(float %x, float %y) {
 
 ; CHECK-LABEL: @test_intrinsic_fmin
 ; SSE:         movapd %xmm0, %xmm2
-; SSE-NEXT:    cmpunordsd %xmm2, %xmm2
+; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
 ; SSE-NEXT:    movapd %xmm2, %xmm3
 ; SSE-NEXT:    andpd %xmm1, %xmm3
 ; SSE-NEXT:    minsd %xmm0, %xmm1

test/CodeGen/X86/fp128-i128.ll

@@ -227,7 +227,7 @@ define fp128 @TestI128_4(fp128 %x) #0 {
 ; CHECK:       # BB#0: # %entry
 ; CHECK-NEXT:    subq $40, %rsp
 ; CHECK-NEXT:    movaps %xmm0, %xmm1
-; CHECK-NEXT:    movaps %xmm1, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    movaps %xmm0, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    movq {{[0-9]+}}(%rsp), %rax
 ; CHECK-NEXT:    movq %rax, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    movq $0, (%rsp)
@@ -275,7 +275,7 @@ define fp128 @acosl(fp128 %x) #0 {
 ; CHECK:       # BB#0: # %entry
 ; CHECK-NEXT:    subq $40, %rsp
 ; CHECK-NEXT:    movaps %xmm0, %xmm1
-; CHECK-NEXT:    movaps %xmm1, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    movaps %xmm0, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    movq {{[0-9]+}}(%rsp), %rax
 ; CHECK-NEXT:    movq %rax, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    movq $0, (%rsp)

test/CodeGen/X86/haddsub-2.ll

@@ -908,16 +908,16 @@ define <4 x float> @not_a_hsub_2(<4 x float> %A, <4 x float> %B) {
 ; SSE-LABEL: not_a_hsub_2:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm0[1],xmm2[1]
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1],xmm0[2,3]
 ; SSE-NEXT:    subss %xmm3, %xmm2
 ; SSE-NEXT:    movshdup {{.*#+}} xmm3 = xmm0[1,1,3,3]
 ; SSE-NEXT:    subss %xmm3, %xmm0
 ; SSE-NEXT:    movaps %xmm1, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1],xmm1[2,3]
 ; SSE-NEXT:    movaps %xmm1, %xmm4
-; SSE-NEXT:    movhlps {{.*#+}} xmm4 = xmm4[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm4 = xmm1[1],xmm4[1]
 ; SSE-NEXT:    subss %xmm4, %xmm3
 ; SSE-NEXT:    movshdup {{.*#+}} xmm4 = xmm1[1,1,3,3]
 ; SSE-NEXT:    subss %xmm4, %xmm1
@@ -965,10 +965,10 @@ define <2 x double> @not_a_hsub_3(<2 x double> %A, <2 x double> %B) {
 ; SSE-LABEL: not_a_hsub_3:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm1, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm1[1],xmm2[1]
 ; SSE-NEXT:    subsd %xmm2, %xmm1
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm0[1],xmm2[1]
 ; SSE-NEXT:    subsd %xmm0, %xmm2
 ; SSE-NEXT:    unpcklpd {{.*#+}} xmm2 = xmm2[0],xmm1[0]
 ; SSE-NEXT:    movapd %xmm2, %xmm0

test/CodeGen/X86/haddsub-undef.ll

@@ -103,7 +103,7 @@ define <2 x double> @test5_undef(<2 x double> %a, <2 x double> %b) {
 ; SSE-LABEL: test5_undef:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm0[1],xmm1[1]
 ; SSE-NEXT:    addsd %xmm0, %xmm1
 ; SSE-NEXT:    movapd %xmm1, %xmm0
 ; SSE-NEXT:    retq
@@ -168,7 +168,7 @@ define <4 x float> @test8_undef(<4 x float> %a, <4 x float> %b) {
 ; SSE-NEXT:    movshdup {{.*#+}} xmm1 = xmm0[1,1,3,3]
 ; SSE-NEXT:    addss %xmm0, %xmm1
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm0[1],xmm2[1]
 ; SSE-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,1,2,3]
 ; SSE-NEXT:    addss %xmm2, %xmm0
 ; SSE-NEXT:    unpcklpd {{.*#+}} xmm1 = xmm1[0],xmm0[0]

test/CodeGen/X86/half.ll

@@ -386,7 +386,7 @@ define <4 x float> @test_extend32_vec4(<4 x half>* %p) #0 {
 ; CHECK-LIBCALL-NEXT:    pushq %rbx
 ; CHECK-LIBCALL-NEXT:    subq $48, %rsp
 ; CHECK-LIBCALL-NEXT:    movq %rdi, %rbx
-; CHECK-LIBCALL-NEXT:    movzwl (%rbx), %edi
+; CHECK-LIBCALL-NEXT:    movzwl (%rdi), %edi
 ; CHECK-LIBCALL-NEXT:    callq __gnu_h2f_ieee
 ; CHECK-LIBCALL-NEXT:    movaps %xmm0, {{[0-9]+}}(%rsp) # 16-byte Spill
 ; CHECK-LIBCALL-NEXT:    movzwl 2(%rbx), %edi
@@ -472,7 +472,7 @@ define <4 x double> @test_extend64_vec4(<4 x half>* %p) #0 {
 ; CHECK-LIBCALL-NEXT:    pushq %rbx
 ; CHECK-LIBCALL-NEXT:    subq $16, %rsp
 ; CHECK-LIBCALL-NEXT:    movq %rdi, %rbx
-; CHECK-LIBCALL-NEXT:    movzwl 4(%rbx), %edi
+; CHECK-LIBCALL-NEXT:    movzwl 4(%rdi), %edi
 ; CHECK-LIBCALL-NEXT:    callq __gnu_h2f_ieee
 ; CHECK-LIBCALL-NEXT:    movss %xmm0, {{[0-9]+}}(%rsp) # 4-byte Spill
 ; CHECK-LIBCALL-NEXT:    movzwl 6(%rbx), %edi
@@ -657,7 +657,7 @@ define void @test_trunc32_vec4(<4 x float> %a, <4 x half>* %p) #0 {
 ; CHECK-I686-NEXT:    movaps %xmm0, {{[0-9]+}}(%esp) # 16-byte Spill
 ; CHECK-I686-NEXT:    movl {{[0-9]+}}(%esp), %ebp
 ; CHECK-I686-NEXT:    movaps %xmm0, %xmm1
-; CHECK-I686-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1,2,3]
+; CHECK-I686-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1],xmm0[2,3]
 ; CHECK-I686-NEXT:    movss %xmm1, (%esp)
 ; CHECK-I686-NEXT:    calll __gnu_f2h_ieee
 ; CHECK-I686-NEXT:    movw %ax, %si

test/CodeGen/X86/inline-asm-fpstack.ll

@@ -162,6 +162,7 @@ define void @testPR4459(x86_fp80 %a) {
 ; CHECK-NEXT:    fstpt (%esp)
 ; CHECK-NEXT:    calll _ceil
 ; CHECK-NEXT:    fld %st(0)
+; CHECK-NEXT:    fxch %st(1)
 ; CHECK-NEXT:    ## InlineAsm Start
 ; CHECK-NEXT:    fistpl %st(0)
 ; CHECK-NEXT:    ## InlineAsm End

test/CodeGen/X86/ipra-local-linkage.ll

@@ -24,7 +24,7 @@ define void @bar(i32 %X) {
   call void @foo()
   ; CHECK-LABEL: bar:
   ; CHECK: callq foo
-  ; CHECK-NEXT: movl  %eax, %r15d
+  ; CHECK-NEXT: movl  %edi, %r15d
   call void asm sideeffect "movl  $0, %r12d", "{r15}~{r12}"(i32 %X)
   ret void
 }

test/CodeGen/X86/localescape.ll

@@ -27,7 +27,7 @@ define void @print_framealloc_from_fp(i8* %fp) {
 
 ; X64-LABEL: print_framealloc_from_fp:
 ; X64: movq %rcx, %[[parent_fp:[a-z]+]]
-; X64: movl .Lalloc_func$frame_escape_0(%[[parent_fp]]), %edx
+; X64: movl .Lalloc_func$frame_escape_0(%rcx), %edx
 ; X64: leaq {{.*}}(%rip), %[[str:[a-z]+]]
 ; X64: movq %[[str]], %rcx
 ; X64: callq printf

test/CodeGen/X86/mul-i1024.ll

@@ -159,7 +159,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    pushl {{[0-9]+}}(%esp) # 4-byte Folded Reload
 ; X32-NEXT:    pushl %esi
 ; X32-NEXT:    movl %esi, %ebx
-; X32-NEXT:    movl %ebx, {{[0-9]+}}(%esp) # 4-byte Spill
+; X32-NEXT:    movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill
 ; X32-NEXT:    pushl %edi
 ; X32-NEXT:    movl %edi, {{[0-9]+}}(%esp) # 4-byte Spill
 ; X32-NEXT:    pushl {{[0-9]+}}(%esp) # 4-byte Folded Reload
@@ -752,7 +752,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl %edi
 ; X32-NEXT:    movl %ebx, %esi
-; X32-NEXT:    pushl %esi
+; X32-NEXT:    pushl %ebx
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl {{[0-9]+}}(%esp) # 4-byte Folded Reload
@@ -898,7 +898,6 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl %edi
-; X32-NEXT:    movl %edi, %ebx
 ; X32-NEXT:    pushl %esi
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
@@ -910,7 +909,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    leal {{[0-9]+}}(%esp), %eax
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
-; X32-NEXT:    pushl %ebx
+; X32-NEXT:    pushl %edi
 ; X32-NEXT:    pushl %esi
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
@@ -1365,7 +1364,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    pushl $0
 ; X32-NEXT:    movl %edi, %ebx
-; X32-NEXT:    pushl %ebx
+; X32-NEXT:    pushl %edi
 ; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi # 4-byte Reload
 ; X32-NEXT:    pushl %esi
 ; X32-NEXT:    pushl $0
@@ -2442,7 +2441,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X32-NEXT:    movl %edx, {{[0-9]+}}(%esp) # 4-byte Spill
 ; X32-NEXT:    adcl %edi, %eax
 ; X32-NEXT:    movl %eax, %esi
-; X32-NEXT:    movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill
+; X32-NEXT:    movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
 ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
 ; X32-NEXT:    addl %eax, {{[0-9]+}}(%esp) # 4-byte Folded Spill
 ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
@@ -4265,7 +4264,6 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq $0, %rbp
 ; X64-NEXT:    addq %rcx, %rbx
 ; X64-NEXT:    movq %rbx, -{{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    movq %rcx, %r11
 ; X64-NEXT:    adcq %rdi, %rbp
 ; X64-NEXT:    setb %bl
 ; X64-NEXT:    movzbl %bl, %ebx
@@ -4275,12 +4273,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    mulq %r8
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rdx, {{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    movq %r11, %r12
-; X64-NEXT:    movq %r11, %r8
+; X64-NEXT:    movq %rcx, %r12
+; X64-NEXT:    movq %rcx, %r8
 ; X64-NEXT:    addq %rax, %r12
 ; X64-NEXT:    movq %rdi, %rax
 ; X64-NEXT:    movq %rdi, %r9
-; X64-NEXT:    movq %r9, (%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rdi, (%rsp) # 8-byte Spill
 ; X64-NEXT:    adcq %rdx, %rax
 ; X64-NEXT:    addq %rbp, %r12
 ; X64-NEXT:    movq %r12, {{[0-9]+}}(%rsp) # 8-byte Spill
@@ -4309,7 +4307,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rdx, %rbx
 ; X64-NEXT:    movq 16(%rsi), %rax
 ; X64-NEXT:    movq %rsi, %r13
-; X64-NEXT:    movq %r13, {{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rsi, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
@@ -4322,7 +4320,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rbx, %r11
 ; X64-NEXT:    movq %r8, %rax
 ; X64-NEXT:    movq %r8, %rbp
-; X64-NEXT:    movq %rbp, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %r8, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    addq %rdi, %rax
 ; X64-NEXT:    movq %r9, %rax
 ; X64-NEXT:    adcq %rcx, %rax
@@ -4334,8 +4332,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rdx, %rsi
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    addq %rdi, %rax
-; X64-NEXT:    movq %rdi, %r9
-; X64-NEXT:    movq %rsi, %rax
+; X64-NEXT:    movq %rdx, %rax
 ; X64-NEXT:    adcq %rcx, %rax
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq 32(%r13), %rax
@@ -4351,9 +4348,10 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rdx, %rax
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rbp, %rax
-; X64-NEXT:    addq %r9, %rax
+; X64-NEXT:    addq %rdi, %rax
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    movq %r9, {{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rdi, %r9
+; X64-NEXT:    movq %rdi, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %rax # 8-byte Reload
 ; X64-NEXT:    adcq %r15, %rax
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
@@ -4371,7 +4369,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    addq %rsi, %r11
 ; X64-NEXT:    movq %rdx, %rbp
 ; X64-NEXT:    adcq $0, %rbp
-; X64-NEXT:    addq %rcx, %r11
+; X64-NEXT:    addq %rbx, %r11
 ; X64-NEXT:    adcq %rsi, %rbp
 ; X64-NEXT:    movq %rsi, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    setb %bl
@@ -4392,11 +4390,11 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rbx, %r10
 ; X64-NEXT:    movq %rcx, %rdx
 ; X64-NEXT:    movq %rcx, %r12
-; X64-NEXT:    movq %r12, {{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rcx, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    addq %r9, %rdx
 ; X64-NEXT:    movq %rdx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %r11, %r8
-; X64-NEXT:    adcq %r8, %r15
+; X64-NEXT:    adcq %r11, %r15
 ; X64-NEXT:    movq %r15, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    adcq %rax, %r14
 ; X64-NEXT:    movq %r14, {{[0-9]+}}(%rsp) # 8-byte Spill
@@ -4492,13 +4490,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rdx, %r12
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    movq %rcx, %rax
-; X64-NEXT:    movq %r10, %rbp
-; X64-NEXT:    mulq %rbp
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %rsi
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rdi # 8-byte Reload
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    mulq %rbp
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %rbp
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    addq %rsi, %rbx
@@ -4525,7 +4522,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq $0, %r15
 ; X64-NEXT:    adcq $0, %r12
 ; X64-NEXT:    movq %r10, %rbx
-; X64-NEXT:    movq %rbx, %rax
+; X64-NEXT:    movq %r10, %rax
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %r11 # 8-byte Reload
 ; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %rcx
@@ -4542,7 +4539,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rbx, %rax
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rcx, %rbx
-; X64-NEXT:    movq %rbx, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rcx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rdx, %rcx
 ; X64-NEXT:    movq %rax, %r8
 ; X64-NEXT:    addq %rbp, %r8
@@ -4573,7 +4570,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    movq %rcx, %rax
 ; X64-NEXT:    movq %r11, %rsi
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %r11
 ; X64-NEXT:    movq %rax, %r13
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %r12 # 8-byte Reload
@@ -4653,13 +4650,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %rdx, %r10
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    movq %rcx, %rax
-; X64-NEXT:    movq %r11, %rbp
-; X64-NEXT:    mulq %rbp
+; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %rdi
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rsi # 8-byte Reload
 ; X64-NEXT:    movq %rsi, %rax
-; X64-NEXT:    mulq %rbp
+; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %rbp
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    addq %rdi, %rbx
@@ -4789,7 +4785,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rdx, %rsi
 ; X64-NEXT:    movq %rax, %r14
 ; X64-NEXT:    movq %r8, %rbp
-; X64-NEXT:    movq %rbp, %rax
+; X64-NEXT:    movq %r8, %rax
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rcx, %r11
 ; X64-NEXT:    movq %rdx, %rbx
@@ -4849,7 +4845,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq $0, %r9
 ; X64-NEXT:    adcq $0, %r10
 ; X64-NEXT:    movq %rbp, %rsi
-; X64-NEXT:    movq %rsi, %rax
+; X64-NEXT:    movq %rbp, %rax
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rdx, %r14
@@ -4906,8 +4902,8 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq $0, %r15
 ; X64-NEXT:    movq %rbp, %rax
 ; X64-NEXT:    movq %r8, %rdi
-; X64-NEXT:    movq %rdi, {{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    mulq %rdi
+; X64-NEXT:    movq %r8, {{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    mulq %r8
 ; X64-NEXT:    movq %rdx, %r9
 ; X64-NEXT:    movq %rax, %r8
 ; X64-NEXT:    addq %rbx, %r8
@@ -4990,13 +4986,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rcx, %r14
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    movq %rcx, %rax
-; X64-NEXT:    movq %r10, %rdi
-; X64-NEXT:    mulq %rdi
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %r11
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rsi # 8-byte Reload
 ; X64-NEXT:    movq %rsi, %rax
-; X64-NEXT:    mulq %rdi
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %rdi
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    addq %r11, %rbx
@@ -5024,8 +5019,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %r8, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    adcq $0, %r14
 ; X64-NEXT:    movq %r14, -{{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    movq %r13, %rbx
-; X64-NEXT:    movq %rbx, %rax
+; X64-NEXT:    movq %r13, %rax
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rdx, %r8
@@ -5038,7 +5032,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rax, %rcx
 ; X64-NEXT:    addq %r8, %rcx
 ; X64-NEXT:    adcq $0, %rsi
-; X64-NEXT:    movq %rbx, %rax
+; X64-NEXT:    movq %r13, %rax
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %r13 # 8-byte Reload
 ; X64-NEXT:    mulq %r13
 ; X64-NEXT:    movq %rdx, %rbx
@@ -5072,13 +5066,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    setb -{{[0-9]+}}(%rsp) # 1-byte Folded Spill
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rbx # 8-byte Reload
 ; X64-NEXT:    movq %rbx, %rax
-; X64-NEXT:    movq %r10, %rsi
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %rcx
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %r8 # 8-byte Reload
 ; X64-NEXT:    movq %r8, %rax
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    mulq %r10
 ; X64-NEXT:    movq %rdx, %rsi
 ; X64-NEXT:    movq %rax, %rdi
 ; X64-NEXT:    addq %rcx, %rdi
@@ -5154,7 +5147,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %r9, %rax
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rcx, %r10
-; X64-NEXT:    movq %r10, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rcx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rdx, %rcx
 ; X64-NEXT:    movq %rax, %rdi
 ; X64-NEXT:    addq %rsi, %rdi
@@ -5166,16 +5159,16 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    movq %rdx, %r14
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %r12 # 8-byte Reload
-; X64-NEXT:    addq %rbx, %r12
+; X64-NEXT:    addq %rax, %r12
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %r15 # 8-byte Reload
-; X64-NEXT:    adcq %r14, %r15
+; X64-NEXT:    adcq %rdx, %r15
 ; X64-NEXT:    addq %rdi, %r12
 ; X64-NEXT:    adcq %rcx, %r15
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rcx # 8-byte Reload
 ; X64-NEXT:    movq %rcx, %rax
 ; X64-NEXT:    movq %r11, %rsi
-; X64-NEXT:    movq %rsi, -{{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    movq %r11, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %r11
 ; X64-NEXT:    movq %rax, {{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %r9 # 8-byte Reload
@@ -5239,7 +5232,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rdx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rax, %r9
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rbp # 8-byte Reload
-; X64-NEXT:    addq %r9, %rbp
+; X64-NEXT:    addq %rax, %rbp
 ; X64-NEXT:    movq {{[0-9]+}}(%rsp), %rax # 8-byte Reload
 ; X64-NEXT:    adcq %rdx, %rax
 ; X64-NEXT:    addq %rsi, %rbp
@@ -5417,7 +5410,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq 88(%rsi), %rax
 ; X64-NEXT:    movq %rsi, %r9
 ; X64-NEXT:    movq %rax, %rsi
-; X64-NEXT:    movq %rsi, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rcx, %r11
 ; X64-NEXT:    movq %rdx, %rbp
@@ -5453,13 +5446,12 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    adcq %r8, %r10
 ; X64-NEXT:    addq %rbx, %rsi
 ; X64-NEXT:    adcq %rbp, %r10
-; X64-NEXT:    movq %r9, %rdi
-; X64-NEXT:    movq 64(%rdi), %r13
+; X64-NEXT:    movq 64(%r9), %r13
 ; X64-NEXT:    movq %r13, %rax
 ; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rdx, %rcx
-; X64-NEXT:    movq 72(%rdi), %r9
+; X64-NEXT:    movq 72(%r9), %r9
 ; X64-NEXT:    movq %r9, %rax
 ; X64-NEXT:    mulq %r11
 ; X64-NEXT:    movq %rdx, %rbp
@@ -5487,8 +5479,8 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    movq %rdx, %r11
 ; X64-NEXT:    movq %rax, %r15
 ; X64-NEXT:    movq %r12, %rcx
-; X64-NEXT:    addq %r15, %rcx
-; X64-NEXT:    adcq %r11, %r8
+; X64-NEXT:    addq %rax, %rcx
+; X64-NEXT:    adcq %rdx, %r8
 ; X64-NEXT:    addq %rbp, %rcx
 ; X64-NEXT:    adcq %rbx, %r8
 ; X64-NEXT:    addq -{{[0-9]+}}(%rsp), %rcx # 8-byte Folded Reload
@@ -5540,14 +5532,13 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    setb %r10b
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %rsi # 8-byte Reload
 ; X64-NEXT:    movq %rsi, %rax
-; X64-NEXT:    movq %r8, %rdi
-; X64-NEXT:    mulq %rdi
+; X64-NEXT:    mulq %r8
 ; X64-NEXT:    movq %rdx, %rcx
 ; X64-NEXT:    movq %rax, %r9
 ; X64-NEXT:    movq -{{[0-9]+}}(%rsp), %rbp # 8-byte Reload
 ; X64-NEXT:    movq %rbp, %rax
-; X64-NEXT:    mulq %rdi
-; X64-NEXT:    movq %rdi, %r12
+; X64-NEXT:    mulq %r8
+; X64-NEXT:    movq %r8, %r12
 ; X64-NEXT:    movq %rdx, %rdi
 ; X64-NEXT:    movq %rax, %rbx
 ; X64-NEXT:    addq %rcx, %rbx
@@ -5586,7 +5577,7 @@ define void @test_1024(i1024* %a, i1024* %b, i1024* %out) nounwind {
 ; X64-NEXT:    imulq %rcx, %rdi
 ; X64-NEXT:    movq %rcx, %rax
 ; X64-NEXT:    movq %r12, %rsi
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    mulq %r12
 ; X64-NEXT:    movq %rax, %r9
 ; X64-NEXT:    addq %rdi, %rdx
 ; X64-NEXT:    movq 104(%rbp), %r8

test/CodeGen/X86/mul-i512.ll

@@ -909,7 +909,7 @@ define void @test_512(i512* %a, i512* %b, i512* %out) nounwind {
 ; X64-NEXT:    movq 8(%rsi), %rbp
 ; X64-NEXT:    movq %r15, %rax
 ; X64-NEXT:    movq %rdx, %rsi
-; X64-NEXT:    mulq %rsi
+; X64-NEXT:    mulq %rdx
 ; X64-NEXT:    movq %rdx, %r9
 ; X64-NEXT:    movq %rax, %r8
 ; X64-NEXT:    movq %r11, %rax
@@ -932,23 +932,24 @@ define void @test_512(i512* %a, i512* %b, i512* %out) nounwind {
 ; X64-NEXT:    movq %r11, %rax
 ; X64-NEXT:    mulq %rbp
 ; X64-NEXT:    movq %rbp, %r14
-; X64-NEXT:    movq %r14, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rbp, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rdx, %rsi
 ; X64-NEXT:    movq %rax, %rbp
 ; X64-NEXT:    addq %rcx, %rbp
 ; X64-NEXT:    adcq %rbx, %rsi
 ; X64-NEXT:    xorl %ecx, %ecx
 ; X64-NEXT:    movq %r10, %rbx
-; X64-NEXT:    movq %rbx, -{{[0-9]+}}(%rsp) # 8-byte Spill
-; X64-NEXT:    movq %rbx, %rax
+; X64-NEXT:    movq %r10, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %r10, %rax
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rdx, %r13
 ; X64-NEXT:    movq %rax, %r10
 ; X64-NEXT:    movq %r15, %rax
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rdx, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    # kill: %RAX<kill>
+; X64-NEXT:    movq %rax, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rax, %r15
-; X64-NEXT:    movq %r15, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    addq %r10, %r15
 ; X64-NEXT:    adcq %r13, %rdx
 ; X64-NEXT:    addq %rbp, %r15
@@ -987,8 +988,8 @@ define void @test_512(i512* %a, i512* %b, i512* %out) nounwind {
 ; X64-NEXT:    mulq %rdx
 ; X64-NEXT:    movq %rdx, %r14
 ; X64-NEXT:    movq %rax, %r11
-; X64-NEXT:    addq %r11, %r10
-; X64-NEXT:    adcq %r14, %r13
+; X64-NEXT:    addq %rax, %r10
+; X64-NEXT:    adcq %rdx, %r13
 ; X64-NEXT:    addq %rbp, %r10
 ; X64-NEXT:    adcq %rsi, %r13
 ; X64-NEXT:    addq %r8, %r10
@@ -1000,7 +1001,7 @@ define void @test_512(i512* %a, i512* %b, i512* %out) nounwind {
 ; X64-NEXT:    movq 16(%rsi), %r8
 ; X64-NEXT:    movq %rcx, %rax
 ; X64-NEXT:    movq %rcx, %r9
-; X64-NEXT:    movq %r9, -{{[0-9]+}}(%rsp) # 8-byte Spill
+; X64-NEXT:    movq %rcx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    mulq %r8
 ; X64-NEXT:    movq %rdx, %rdi
 ; X64-NEXT:    movq %rax, %r12
@@ -1031,7 +1032,7 @@ define void @test_512(i512* %a, i512* %b, i512* %out) nounwind {
 ; X64-NEXT:    mulq %rcx
 ; X64-NEXT:    movq %rdx, -{{[0-9]+}}(%rsp) # 8-byte Spill
 ; X64-NEXT:    movq %rax, %rbp
-; X64-NEXT:    addq %rbp, %r11
+; X64-NEXT:    addq %rax, %r11
 ; X64-NEXT:    adcq %rdx, %r14
 ; X64-NEXT:    addq %r9, %r11
 ; X64-NEXT:    adcq %rbx, %r14

test/CodeGen/X86/mul128.ll

@@ -7,7 +7,7 @@ define i128 @foo(i128 %t, i128 %u) {
 ; X64-NEXT:    movq %rdx, %r8
 ; X64-NEXT:    imulq %rdi, %rcx
 ; X64-NEXT:    movq %rdi, %rax
-; X64-NEXT:    mulq %r8
+; X64-NEXT:    mulq %rdx
 ; X64-NEXT:    addq %rcx, %rdx
 ; X64-NEXT:    imulq %r8, %rsi
 ; X64-NEXT:    addq %rsi, %rdx

test/CodeGen/X86/pmul.ll

@@ -9,7 +9,7 @@ define <16 x i8> @mul_v16i8c(<16 x i8> %i) nounwind  {
 ; SSE2-LABEL: mul_v16i8c:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm0[8],xmm1[9],xmm0[9],xmm1[10],xmm0[10],xmm1[11],xmm0[11],xmm1[12],xmm0[12],xmm1[13],xmm0[13],xmm1[14],xmm0[14],xmm1[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm1
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm2 = [117,117,117,117,117,117,117,117]
 ; SSE2-NEXT:    pmullw %xmm2, %xmm1
@@ -143,10 +143,10 @@ define <16 x i8> @mul_v16i8(<16 x i8> %i, <16 x i8> %j) nounwind  {
 ; SSE2-LABEL: mul_v16i8:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa %xmm0, %xmm3
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm3 = xmm3[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm3 = xmm3[8],xmm0[8],xmm3[9],xmm0[9],xmm3[10],xmm0[10],xmm3[11],xmm0[11],xmm3[12],xmm0[12],xmm3[13],xmm0[13],xmm3[14],xmm0[14],xmm3[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm3
 ; SSE2-NEXT:    pmullw %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm2 = [255,255,255,255,255,255,255,255]
@@ -386,7 +386,7 @@ define <32 x i8> @mul_v32i8c(<32 x i8> %i) nounwind  {
 ; SSE2-LABEL: mul_v32i8c:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm0[8],xmm2[9],xmm0[9],xmm2[10],xmm0[10],xmm2[11],xmm0[11],xmm2[12],xmm0[12],xmm2[13],xmm0[13],xmm2[14],xmm0[14],xmm2[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [117,117,117,117,117,117,117,117]
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2
@@ -398,7 +398,7 @@ define <32 x i8> @mul_v32i8c(<32 x i8> %i) nounwind  {
 ; SSE2-NEXT:    pand %xmm4, %xmm0
 ; SSE2-NEXT:    packuswb %xmm2, %xmm0
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2
 ; SSE2-NEXT:    pand %xmm4, %xmm2
@@ -567,10 +567,10 @@ define <32 x i8> @mul_v32i8(<32 x i8> %i, <32 x i8> %j) nounwind  {
 ; SSE2-LABEL: mul_v32i8:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm2, %xmm4
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm2[8],xmm4[9],xmm2[9],xmm4[10],xmm2[10],xmm4[11],xmm2[11],xmm4[12],xmm2[12],xmm4[13],xmm2[13],xmm4[14],xmm2[14],xmm4[15],xmm2[15]
 ; SSE2-NEXT:    psraw $8, %xmm4
 ; SSE2-NEXT:    movdqa %xmm0, %xmm5
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8],xmm0[8],xmm5[9],xmm0[9],xmm5[10],xmm0[10],xmm5[11],xmm0[11],xmm5[12],xmm0[12],xmm5[13],xmm0[13],xmm5[14],xmm0[14],xmm5[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm5
 ; SSE2-NEXT:    pmullw %xmm4, %xmm5
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm4 = [255,255,255,255,255,255,255,255]
@@ -583,10 +583,10 @@ define <32 x i8> @mul_v32i8(<32 x i8> %i, <32 x i8> %j) nounwind  {
 ; SSE2-NEXT:    pand %xmm4, %xmm0
 ; SSE2-NEXT:    packuswb %xmm5, %xmm0
 ; SSE2-NEXT:    movdqa %xmm3, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm3[8],xmm2[9],xmm3[9],xmm2[10],xmm3[10],xmm2[11],xmm3[11],xmm2[12],xmm3[12],xmm2[13],xmm3[13],xmm2[14],xmm3[14],xmm2[15],xmm3[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa %xmm1, %xmm5
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8],xmm1[8],xmm5[9],xmm1[9],xmm5[10],xmm1[10],xmm5[11],xmm1[11],xmm5[12],xmm1[12],xmm5[13],xmm1[13],xmm5[14],xmm1[14],xmm5[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm5
 ; SSE2-NEXT:    pmullw %xmm2, %xmm5
 ; SSE2-NEXT:    pand %xmm4, %xmm5
@@ -774,7 +774,7 @@ define <64 x i8> @mul_v64i8c(<64 x i8> %i) nounwind  {
 ; SSE2-LABEL: mul_v64i8c:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm6
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8],xmm0[8],xmm6[9],xmm0[9],xmm6[10],xmm0[10],xmm6[11],xmm0[11],xmm6[12],xmm0[12],xmm6[13],xmm0[13],xmm6[14],xmm0[14],xmm6[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm6
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm4 = [117,117,117,117,117,117,117,117]
 ; SSE2-NEXT:    pmullw %xmm4, %xmm6
@@ -786,7 +786,7 @@ define <64 x i8> @mul_v64i8c(<64 x i8> %i) nounwind  {
 ; SSE2-NEXT:    pand %xmm5, %xmm0
 ; SSE2-NEXT:    packuswb %xmm6, %xmm0
 ; SSE2-NEXT:    movdqa %xmm1, %xmm6
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8],xmm1[8],xmm6[9],xmm1[9],xmm6[10],xmm1[10],xmm6[11],xmm1[11],xmm6[12],xmm1[12],xmm6[13],xmm1[13],xmm6[14],xmm1[14],xmm6[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm6
 ; SSE2-NEXT:    pmullw %xmm4, %xmm6
 ; SSE2-NEXT:    pand %xmm5, %xmm6
@@ -796,7 +796,7 @@ define <64 x i8> @mul_v64i8c(<64 x i8> %i) nounwind  {
 ; SSE2-NEXT:    pand %xmm5, %xmm1
 ; SSE2-NEXT:    packuswb %xmm6, %xmm1
 ; SSE2-NEXT:    movdqa %xmm2, %xmm6
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8],xmm2[8],xmm6[9],xmm2[9],xmm6[10],xmm2[10],xmm6[11],xmm2[11],xmm6[12],xmm2[12],xmm6[13],xmm2[13],xmm6[14],xmm2[14],xmm6[15],xmm2[15]
 ; SSE2-NEXT:    psraw $8, %xmm6
 ; SSE2-NEXT:    pmullw %xmm4, %xmm6
 ; SSE2-NEXT:    pand %xmm5, %xmm6
@@ -806,7 +806,7 @@ define <64 x i8> @mul_v64i8c(<64 x i8> %i) nounwind  {
 ; SSE2-NEXT:    pand %xmm5, %xmm2
 ; SSE2-NEXT:    packuswb %xmm6, %xmm2
 ; SSE2-NEXT:    movdqa %xmm3, %xmm6
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm6 = xmm6[8],xmm3[8],xmm6[9],xmm3[9],xmm6[10],xmm3[10],xmm6[11],xmm3[11],xmm6[12],xmm3[12],xmm6[13],xmm3[13],xmm6[14],xmm3[14],xmm6[15],xmm3[15]
 ; SSE2-NEXT:    psraw $8, %xmm6
 ; SSE2-NEXT:    pmullw %xmm4, %xmm6
 ; SSE2-NEXT:    pand %xmm5, %xmm6
@@ -821,7 +821,7 @@ define <64 x i8> @mul_v64i8c(<64 x i8> %i) nounwind  {
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    movdqa %xmm1, %xmm4
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
-; SSE41-NEXT:    pmovsxbw %xmm1, %xmm0
+; SSE41-NEXT:    pmovsxbw %xmm0, %xmm0
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm6 = [117,117,117,117,117,117,117,117]
 ; SSE41-NEXT:    pmullw %xmm6, %xmm0
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm7 = [255,255,255,255,255,255,255,255]
@@ -939,10 +939,10 @@ define <64 x i8> @mul_v64i8(<64 x i8> %i, <64 x i8> %j) nounwind  {
 ; SSE2-LABEL: mul_v64i8:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm4, %xmm8
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm8 = xmm8[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm8 = xmm8[8],xmm4[8],xmm8[9],xmm4[9],xmm8[10],xmm4[10],xmm8[11],xmm4[11],xmm8[12],xmm4[12],xmm8[13],xmm4[13],xmm8[14],xmm4[14],xmm8[15],xmm4[15]
 ; SSE2-NEXT:    psraw $8, %xmm8
 ; SSE2-NEXT:    movdqa %xmm0, %xmm9
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm9 = xmm9[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm9 = xmm9[8],xmm0[8],xmm9[9],xmm0[9],xmm9[10],xmm0[10],xmm9[11],xmm0[11],xmm9[12],xmm0[12],xmm9[13],xmm0[13],xmm9[14],xmm0[14],xmm9[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm9
 ; SSE2-NEXT:    pmullw %xmm8, %xmm9
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm8 = [255,255,255,255,255,255,255,255]
@@ -955,10 +955,10 @@ define <64 x i8> @mul_v64i8(<64 x i8> %i, <64 x i8> %j) nounwind  {
 ; SSE2-NEXT:    pand %xmm8, %xmm0
 ; SSE2-NEXT:    packuswb %xmm9, %xmm0
 ; SSE2-NEXT:    movdqa %xmm5, %xmm9
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm9 = xmm9[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm9 = xmm9[8],xmm5[8],xmm9[9],xmm5[9],xmm9[10],xmm5[10],xmm9[11],xmm5[11],xmm9[12],xmm5[12],xmm9[13],xmm5[13],xmm9[14],xmm5[14],xmm9[15],xmm5[15]
 ; SSE2-NEXT:    psraw $8, %xmm9
 ; SSE2-NEXT:    movdqa %xmm1, %xmm4
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm1[8],xmm4[9],xmm1[9],xmm4[10],xmm1[10],xmm4[11],xmm1[11],xmm4[12],xmm1[12],xmm4[13],xmm1[13],xmm4[14],xmm1[14],xmm4[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm4
 ; SSE2-NEXT:    pmullw %xmm9, %xmm4
 ; SSE2-NEXT:    pand %xmm8, %xmm4
@@ -970,10 +970,10 @@ define <64 x i8> @mul_v64i8(<64 x i8> %i, <64 x i8> %j) nounwind  {
 ; SSE2-NEXT:    pand %xmm8, %xmm1
 ; SSE2-NEXT:    packuswb %xmm4, %xmm1
 ; SSE2-NEXT:    movdqa %xmm6, %xmm4
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm6[8],xmm4[9],xmm6[9],xmm4[10],xmm6[10],xmm4[11],xmm6[11],xmm4[12],xmm6[12],xmm4[13],xmm6[13],xmm4[14],xmm6[14],xmm4[15],xmm6[15]
 ; SSE2-NEXT:    psraw $8, %xmm4
 ; SSE2-NEXT:    movdqa %xmm2, %xmm5
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8],xmm2[8],xmm5[9],xmm2[9],xmm5[10],xmm2[10],xmm5[11],xmm2[11],xmm5[12],xmm2[12],xmm5[13],xmm2[13],xmm5[14],xmm2[14],xmm5[15],xmm2[15]
 ; SSE2-NEXT:    psraw $8, %xmm5
 ; SSE2-NEXT:    pmullw %xmm4, %xmm5
 ; SSE2-NEXT:    pand %xmm8, %xmm5
@@ -985,10 +985,10 @@ define <64 x i8> @mul_v64i8(<64 x i8> %i, <64 x i8> %j) nounwind  {
 ; SSE2-NEXT:    pand %xmm8, %xmm2
 ; SSE2-NEXT:    packuswb %xmm5, %xmm2
 ; SSE2-NEXT:    movdqa %xmm7, %xmm4
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm4 = xmm4[8],xmm7[8],xmm4[9],xmm7[9],xmm4[10],xmm7[10],xmm4[11],xmm7[11],xmm4[12],xmm7[12],xmm4[13],xmm7[13],xmm4[14],xmm7[14],xmm4[15],xmm7[15]
 ; SSE2-NEXT:    psraw $8, %xmm4
 ; SSE2-NEXT:    movdqa %xmm3, %xmm5
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm5 = xmm5[8],xmm3[8],xmm5[9],xmm3[9],xmm5[10],xmm3[10],xmm5[11],xmm3[11],xmm5[12],xmm3[12],xmm5[13],xmm3[13],xmm5[14],xmm3[14],xmm5[15],xmm3[15]
 ; SSE2-NEXT:    psraw $8, %xmm5
 ; SSE2-NEXT:    pmullw %xmm4, %xmm5
 ; SSE2-NEXT:    pand %xmm8, %xmm5
@@ -1006,7 +1006,7 @@ define <64 x i8> @mul_v64i8(<64 x i8> %i, <64 x i8> %j) nounwind  {
 ; SSE41-NEXT:    movdqa %xmm1, %xmm8
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
 ; SSE41-NEXT:    pmovsxbw %xmm4, %xmm9
-; SSE41-NEXT:    pmovsxbw %xmm1, %xmm0
+; SSE41-NEXT:    pmovsxbw %xmm0, %xmm0
 ; SSE41-NEXT:    pmullw %xmm9, %xmm0
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm9 = [255,255,255,255,255,255,255,255]
 ; SSE41-NEXT:    pand %xmm9, %xmm0

test/CodeGen/X86/powi.ll

@@ -5,7 +5,7 @@ define double @pow_wrapper(double %a) nounwind readonly ssp noredzone {
 ; CHECK-LABEL: pow_wrapper:
 ; CHECK:       # BB#0:
 ; CHECK-NEXT:    movapd %xmm0, %xmm1
-; CHECK-NEXT:    mulsd %xmm1, %xmm1
+; CHECK-NEXT:    mulsd %xmm0, %xmm1
 ; CHECK-NEXT:    mulsd %xmm1, %xmm0
 ; CHECK-NEXT:    mulsd %xmm1, %xmm1
 ; CHECK-NEXT:    mulsd %xmm1, %xmm0

test/CodeGen/X86/pr11334.ll

@@ -25,7 +25,7 @@ define <3 x double> @v3f2d_ext_vec(<3 x float> %v1) nounwind {
 ; SSE-NEXT:    cvtps2pd %xmm0, %xmm0
 ; SSE-NEXT:    movlps %xmm0, -{{[0-9]+}}(%rsp)
 ; SSE-NEXT:    movaps %xmm2, %xmm1
-; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm1 = xmm2[1],xmm1[1]
 ; SSE-NEXT:    fldl -{{[0-9]+}}(%rsp)
 ; SSE-NEXT:    movaps %xmm2, %xmm0
 ; SSE-NEXT:    retq

test/CodeGen/X86/pr29112.ll

@@ -49,16 +49,16 @@ define <4 x float> @bar(<4 x float>* %a1p, <4 x float>* %a2p, <4 x float> %a3, <
 ; CHECK-NEXT:    vinsertps {{.*#+}} xmm2 = xmm9[0,1],xmm2[3],xmm9[3]
 ; CHECK-NEXT:    vinsertps {{.*#+}} xmm2 = xmm2[0,1,2],xmm12[0]
 ; CHECK-NEXT:    vaddps %xmm3, %xmm2, %xmm2
-; CHECK-NEXT:    vmovaps %xmm15, %xmm1
-; CHECK-NEXT:    vmovaps %xmm1, {{[0-9]+}}(%rsp) # 16-byte Spill
-; CHECK-NEXT:    vaddps %xmm0, %xmm1, %xmm9
+; CHECK-NEXT:    vmovaps %xmm15, {{[0-9]+}}(%rsp) # 16-byte Spill
+; CHECK-NEXT:    vaddps %xmm0, %xmm15, %xmm9
 ; CHECK-NEXT:    vaddps %xmm14, %xmm10, %xmm0
-; CHECK-NEXT:    vaddps %xmm1, %xmm1, %xmm8
+; CHECK-NEXT:    vaddps %xmm15, %xmm15, %xmm8
 ; CHECK-NEXT:    vaddps %xmm11, %xmm3, %xmm3
 ; CHECK-NEXT:    vaddps %xmm0, %xmm3, %xmm0
-; CHECK-NEXT:    vaddps %xmm0, %xmm1, %xmm0
+; CHECK-NEXT:    vaddps %xmm0, %xmm15, %xmm0
 ; CHECK-NEXT:    vmovaps %xmm8, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    vmovaps %xmm9, (%rsp)
+; CHECK-NEXT:    vmovaps %xmm15, %xmm1
 ; CHECK-NEXT:    vmovaps {{[0-9]+}}(%rsp), %xmm3 # 16-byte Reload
 ; CHECK-NEXT:    vzeroupper
 ; CHECK-NEXT:    callq foo

test/CodeGen/X86/psubus.ll

@@ -638,7 +638,7 @@ define <16 x i8> @test14(<16 x i8> %x, <16 x i32> %y) nounwind {
 ; SSE41-LABEL: test14:
 ; SSE41:       ## BB#0: ## %vector.ph
 ; SSE41-NEXT:    movdqa %xmm0, %xmm5
-; SSE41-NEXT:    pshufd {{.*#+}} xmm0 = xmm5[1,1,2,3]
+; SSE41-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,1,2,3]
 ; SSE41-NEXT:    pmovzxbd {{.*#+}} xmm8 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero
 ; SSE41-NEXT:    pmovzxbd {{.*#+}} xmm0 = xmm5[0],zero,zero,zero,xmm5[1],zero,zero,zero,xmm5[2],zero,zero,zero,xmm5[3],zero,zero,zero
 ; SSE41-NEXT:    pshufd {{.*#+}} xmm6 = xmm5[2,3,0,1]

test/CodeGen/X86/shrink-wrap-chkstk.ll

@@ -61,7 +61,7 @@ false:
 
 ; CHECK-LABEL: @use_eax_before_prologue@8: # @use_eax_before_prologue
 ; CHECK: movl %ecx, %eax
-; CHECK: cmpl %edx, %eax
+; CHECK: cmpl %edx, %ecx
 ; CHECK: jge LBB1_2
 ; CHECK: pushl %eax
 ; CHECK: movl $4092, %eax

test/CodeGen/X86/sqrt-fastmath.ll

@@ -132,7 +132,7 @@ define float @f32_estimate(float %x) #1 {
 ; SSE:       # BB#0:
 ; SSE-NEXT:    rsqrtss %xmm0, %xmm1
 ; SSE-NEXT:    movaps %xmm1, %xmm2
-; SSE-NEXT:    mulss %xmm2, %xmm2
+; SSE-NEXT:    mulss %xmm1, %xmm2
 ; SSE-NEXT:    mulss %xmm0, %xmm2
 ; SSE-NEXT:    addss {{.*}}(%rip), %xmm2
 ; SSE-NEXT:    mulss {{.*}}(%rip), %xmm1
@@ -178,7 +178,7 @@ define <4 x float> @v4f32_estimate(<4 x float> %x) #1 {
 ; SSE:       # BB#0:
 ; SSE-NEXT:    rsqrtps %xmm0, %xmm1
 ; SSE-NEXT:    movaps %xmm1, %xmm2
-; SSE-NEXT:    mulps %xmm2, %xmm2
+; SSE-NEXT:    mulps %xmm1, %xmm2
 ; SSE-NEXT:    mulps %xmm0, %xmm2
 ; SSE-NEXT:    addps {{.*}}(%rip), %xmm2
 ; SSE-NEXT:    mulps {{.*}}(%rip), %xmm1
@@ -228,7 +228,7 @@ define <8 x float> @v8f32_estimate(<8 x float> %x) #1 {
 ; SSE-NEXT:    rsqrtps %xmm0, %xmm3
 ; SSE-NEXT:    movaps {{.*#+}} xmm4 = [-5.000000e-01,-5.000000e-01,-5.000000e-01,-5.000000e-01]
 ; SSE-NEXT:    movaps %xmm3, %xmm2
-; SSE-NEXT:    mulps %xmm2, %xmm2
+; SSE-NEXT:    mulps %xmm3, %xmm2
 ; SSE-NEXT:    mulps %xmm0, %xmm2
 ; SSE-NEXT:    movaps {{.*#+}} xmm0 = [-3.000000e+00,-3.000000e+00,-3.000000e+00,-3.000000e+00]
 ; SSE-NEXT:    addps %xmm0, %xmm2
@@ -236,7 +236,7 @@ define <8 x float> @v8f32_estimate(<8 x float> %x) #1 {
 ; SSE-NEXT:    mulps %xmm3, %xmm2
 ; SSE-NEXT:    rsqrtps %xmm1, %xmm5
 ; SSE-NEXT:    movaps %xmm5, %xmm3
-; SSE-NEXT:    mulps %xmm3, %xmm3
+; SSE-NEXT:    mulps %xmm5, %xmm3
 ; SSE-NEXT:    mulps %xmm1, %xmm3
 ; SSE-NEXT:    addps %xmm0, %xmm3
 ; SSE-NEXT:    mulps %xmm4, %xmm3

test/CodeGen/X86/sse1.ll

@@ -16,7 +16,7 @@ define <2 x float> @test4(<2 x float> %A, <2 x float> %B) nounwind {
 ; X32-LABEL: test4:
 ; X32:       # BB#0: # %entry
 ; X32-NEXT:    movaps %xmm0, %xmm2
-; X32-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1,2,3]
+; X32-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1],xmm0[2,3]
 ; X32-NEXT:    addss %xmm1, %xmm0
 ; X32-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1,2,3]
 ; X32-NEXT:    subss %xmm1, %xmm2
@@ -26,7 +26,7 @@ define <2 x float> @test4(<2 x float> %A, <2 x float> %B) nounwind {
 ; X64-LABEL: test4:
 ; X64:       # BB#0: # %entry
 ; X64-NEXT:    movaps %xmm0, %xmm2
-; X64-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1,2,3]
+; X64-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1],xmm0[2,3]
 ; X64-NEXT:    addss %xmm1, %xmm0
 ; X64-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1,2,3]
 ; X64-NEXT:    subss %xmm1, %xmm2

test/CodeGen/X86/sse3-avx-addsub-2.ll

@@ -406,9 +406,9 @@ define <4 x float> @test16(<4 x float> %A, <4 x float> %B) {
 ; SSE-NEXT:    movaps %xmm0, %xmm2
 ; SSE-NEXT:    subss %xmm0, %xmm2
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm3[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm0[1],xmm3[1]
 ; SSE-NEXT:    movaps %xmm1, %xmm4
-; SSE-NEXT:    movhlps {{.*#+}} xmm4 = xmm4[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm4 = xmm1[1],xmm4[1]
 ; SSE-NEXT:    subss %xmm4, %xmm3
 ; SSE-NEXT:    movshdup {{.*#+}} xmm4 = xmm0[1,1,3,3]
 ; SSE-NEXT:    addss %xmm0, %xmm4

test/CodeGen/X86/statepoint-live-in.ll

@@ -126,7 +126,7 @@ define void @test6(i32 %a) gc "statepoint-example" {
 ; CHECK-NEXT:  Lcfi11:
 ; CHECK-NEXT:    .cfi_offset %rbx, -16
 ; CHECK-NEXT:    movl %edi, %ebx
-; CHECK-NEXT:    movl %ebx, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    movl %edi, {{[0-9]+}}(%rsp)
 ; CHECK-NEXT:    callq _baz
 ; CHECK-NEXT:  Ltmp6:
 ; CHECK-NEXT:    callq _bar
@@ -153,13 +153,13 @@ entry:
 ; CHECK:      .byte	1
 ; CHECK-NEXT:   .byte   0
 ; CHECK-NEXT: .short 4
-; CHECK-NEXT: .short	6
+; CHECK-NEXT: .short	5
 ; CHECK-NEXT:   .short  0
 ; CHECK-NEXT: .long	0
 ; CHECK:      .byte	1
 ; CHECK-NEXT:   .byte   0
 ; CHECK-NEXT: .short 4
-; CHECK-NEXT: .short	3
+; CHECK-NEXT: .short	4
 ; CHECK-NEXT:   .short  0
 ; CHECK-NEXT: .long	0
 ; CHECK: Ltmp2-_test2

test/CodeGen/X86/statepoint-stack-usage.ll

@@ -61,9 +61,9 @@ define i32 @back_to_back_deopt(i32 %a, i32 %b, i32 %c) #1
   gc "statepoint-example" {
 ; CHECK-LABEL: back_to_back_deopt
 ; The exact stores don't matter, but there need to be three stack slots created
-; CHECK-DAG: movl	%ebx, 12(%rsp)
-; CHECK-DAG: movl	%ebp, 8(%rsp)
-; CHECK-DAG: movl	%r14d, 4(%rsp)
+; CHECK-DAG: movl	%edi, 12(%rsp)
+; CHECK-DAG: movl	%esi, 8(%rsp)
+; CHECK-DAG: movl	%edx, 4(%rsp)
 ; CHECK: callq
 ; CHECK-DAG: movl	%ebx, 12(%rsp)
 ; CHECK-DAG: movl	%ebp, 8(%rsp)

test/CodeGen/X86/vec_fp_to_int.ll

@@ -1018,12 +1018,12 @@ define <4 x i64> @fptosi_4f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    cvttss2si %xmm0, %rax
 ; SSE-NEXT:    movq %rax, %xmm2
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1],xmm0[2,3]
 ; SSE-NEXT:    cvttss2si %xmm1, %rax
 ; SSE-NEXT:    movq %rax, %xmm1
 ; SSE-NEXT:    punpcklqdq {{.*#+}} xmm2 = xmm2[0],xmm1[0]
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1],xmm0[2,3]
 ; SSE-NEXT:    cvttss2si %xmm1, %rax
 ; SSE-NEXT:    movq %rax, %xmm3
 ; SSE-NEXT:    movhlps {{.*#+}} xmm0 = xmm0[1,1]
@@ -1126,12 +1126,12 @@ define <4 x i64> @fptosi_8f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    cvttss2si %xmm0, %rax
 ; SSE-NEXT:    movq %rax, %xmm2
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,1],xmm0[2,3]
 ; SSE-NEXT:    cvttss2si %xmm1, %rax
 ; SSE-NEXT:    movq %rax, %xmm1
 ; SSE-NEXT:    punpcklqdq {{.*#+}} xmm2 = xmm2[0],xmm1[0]
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1],xmm0[2,3]
 ; SSE-NEXT:    cvttss2si %xmm1, %rax
 ; SSE-NEXT:    movq %rax, %xmm3
 ; SSE-NEXT:    movhlps {{.*#+}} xmm0 = xmm0[1,1]
@@ -1316,11 +1316,11 @@ define <4 x i32> @fptoui_4f32_to_4i32(<4 x float> %a) {
 ; SSE-LABEL: fptoui_4f32_to_4i32:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[3,1],xmm0[2,3]
 ; SSE-NEXT:    cvttss2si %xmm1, %rax
 ; SSE-NEXT:    movd %eax, %xmm1
 ; SSE-NEXT:    movaps %xmm0, %xmm2
-; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm2[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm2 = xmm0[1],xmm2[1]
 ; SSE-NEXT:    cvttss2si %xmm2, %rax
 ; SSE-NEXT:    movd %eax, %xmm2
 ; SSE-NEXT:    punpckldq {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[1],xmm1[1]
@@ -1560,7 +1560,7 @@ define <8 x i32> @fptoui_8f32_to_8i32(<8 x float> %a) {
 ; SSE-NEXT:    cvttss2si %xmm0, %rax
 ; SSE-NEXT:    movd %eax, %xmm0
 ; SSE-NEXT:    movaps %xmm2, %xmm3
-; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm3[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm2[1],xmm3[1]
 ; SSE-NEXT:    cvttss2si %xmm3, %rax
 ; SSE-NEXT:    movd %eax, %xmm3
 ; SSE-NEXT:    punpckldq {{.*#+}} xmm3 = xmm3[0],xmm0[0],xmm3[1],xmm0[1]
@@ -1572,11 +1572,11 @@ define <8 x i32> @fptoui_8f32_to_8i32(<8 x float> %a) {
 ; SSE-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1]
 ; SSE-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm3[0]
 ; SSE-NEXT:    movaps %xmm1, %xmm2
-; SSE-NEXT:    shufps {{.*#+}} xmm2 = xmm2[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm2 = xmm2[3,1],xmm1[2,3]
 ; SSE-NEXT:    cvttss2si %xmm2, %rax
 ; SSE-NEXT:    movd %eax, %xmm2
 ; SSE-NEXT:    movaps %xmm1, %xmm3
-; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm3[1,1]
+; SSE-NEXT:    movhlps {{.*#+}} xmm3 = xmm1[1],xmm3[1]
 ; SSE-NEXT:    cvttss2si %xmm3, %rax
 ; SSE-NEXT:    movd %eax, %xmm3
 ; SSE-NEXT:    punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
@@ -1687,7 +1687,7 @@ define <4 x i64> @fptoui_4f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    cmovaeq %rcx, %rdx
 ; SSE-NEXT:    movq %rdx, %xmm2
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[1,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[1,1],xmm0[2,3]
 ; SSE-NEXT:    movaps %xmm3, %xmm4
 ; SSE-NEXT:    subss %xmm1, %xmm4
 ; SSE-NEXT:    cvttss2si %xmm4, %rcx
@@ -1698,7 +1698,7 @@ define <4 x i64> @fptoui_4f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    movq %rdx, %xmm3
 ; SSE-NEXT:    punpcklqdq {{.*#+}} xmm2 = xmm2[0],xmm3[0]
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1],xmm0[2,3]
 ; SSE-NEXT:    movaps %xmm3, %xmm4
 ; SSE-NEXT:    subss %xmm1, %xmm4
 ; SSE-NEXT:    cvttss2si %xmm4, %rcx
@@ -1865,7 +1865,7 @@ define <4 x i64> @fptoui_8f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    cmovaeq %rcx, %rdx
 ; SSE-NEXT:    movq %rdx, %xmm2
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[1,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[1,1],xmm0[2,3]
 ; SSE-NEXT:    movaps %xmm3, %xmm4
 ; SSE-NEXT:    subss %xmm1, %xmm4
 ; SSE-NEXT:    cvttss2si %xmm4, %rcx
@@ -1876,7 +1876,7 @@ define <4 x i64> @fptoui_8f32_to_4i64(<8 x float> %a) {
 ; SSE-NEXT:    movq %rdx, %xmm3
 ; SSE-NEXT:    punpcklqdq {{.*#+}} xmm2 = xmm2[0],xmm3[0]
 ; SSE-NEXT:    movaps %xmm0, %xmm3
-; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1,2,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm3 = xmm3[3,1],xmm0[2,3]
 ; SSE-NEXT:    movaps %xmm3, %xmm4
 ; SSE-NEXT:    subss %xmm1, %xmm4
 ; SSE-NEXT:    cvttss2si %xmm4, %rcx

test/CodeGen/X86/vec_int_to_fp.ll

@@ -1611,7 +1611,7 @@ define <4 x float> @uitofp_2i64_to_4f32(<2 x i64> %a) {
 ; SSE-LABEL: uitofp_2i64_to_4f32:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movdqa %xmm0, %xmm1
-; SSE-NEXT:    movq %xmm1, %rax
+; SSE-NEXT:    movq %xmm0, %rax
 ; SSE-NEXT:    testq %rax, %rax
 ; SSE-NEXT:    js .LBB39_1
 ; SSE-NEXT:  # BB#2:
@@ -1839,7 +1839,7 @@ define <4 x float> @uitofp_4i64_to_4f32_undef(<2 x i64> %a) {
 ; SSE-LABEL: uitofp_4i64_to_4f32_undef:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movdqa %xmm0, %xmm1
-; SSE-NEXT:    movq %xmm1, %rax
+; SSE-NEXT:    movq %xmm0, %rax
 ; SSE-NEXT:    testq %rax, %rax
 ; SSE-NEXT:    js .LBB41_1
 ; SSE-NEXT:  # BB#2:

test/CodeGen/X86/vec_minmax_sint.ll

@@ -437,7 +437,7 @@ define <2 x i64> @max_ge_v2i64(<2 x i64> %a, <2 x i64> %b) {
 ; SSE42:       # BB#0:
 ; SSE42-NEXT:    movdqa %xmm0, %xmm2
 ; SSE42-NEXT:    movdqa %xmm1, %xmm3
-; SSE42-NEXT:    pcmpgtq %xmm2, %xmm3
+; SSE42-NEXT:    pcmpgtq %xmm0, %xmm3
 ; SSE42-NEXT:    pcmpeqd %xmm0, %xmm0
 ; SSE42-NEXT:    pxor %xmm3, %xmm0
 ; SSE42-NEXT:    blendvpd %xmm0, %xmm2, %xmm1

test/CodeGen/X86/vec_shift4.ll

@@ -35,7 +35,7 @@ define <2 x i64> @shl2(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
 ; X32:       # BB#0: # %entry
 ; X32-NEXT:    movdqa %xmm0, %xmm2
 ; X32-NEXT:    psllw $5, %xmm1
-; X32-NEXT:    movdqa %xmm2, %xmm3
+; X32-NEXT:    movdqa %xmm0, %xmm3
 ; X32-NEXT:    psllw $4, %xmm3
 ; X32-NEXT:    pand {{\.LCPI.*}}, %xmm3
 ; X32-NEXT:    movdqa %xmm1, %xmm0
@@ -47,7 +47,7 @@ define <2 x i64> @shl2(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
 ; X32-NEXT:    movdqa %xmm1, %xmm0
 ; X32-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
 ; X32-NEXT:    movdqa %xmm2, %xmm3
-; X32-NEXT:    paddb %xmm3, %xmm3
+; X32-NEXT:    paddb %xmm2, %xmm3
 ; X32-NEXT:    paddb %xmm1, %xmm1
 ; X32-NEXT:    movdqa %xmm1, %xmm0
 ; X32-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
@@ -58,7 +58,7 @@ define <2 x i64> @shl2(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
 ; X64:       # BB#0: # %entry
 ; X64-NEXT:    movdqa %xmm0, %xmm2
 ; X64-NEXT:    psllw $5, %xmm1
-; X64-NEXT:    movdqa %xmm2, %xmm3
+; X64-NEXT:    movdqa %xmm0, %xmm3
 ; X64-NEXT:    psllw $4, %xmm3
 ; X64-NEXT:    pand {{.*}}(%rip), %xmm3
 ; X64-NEXT:    movdqa %xmm1, %xmm0
@@ -70,7 +70,7 @@ define <2 x i64> @shl2(<16 x i8> %r, <16 x i8> %a) nounwind readnone ssp {
 ; X64-NEXT:    movdqa %xmm1, %xmm0
 ; X64-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
 ; X64-NEXT:    movdqa %xmm2, %xmm3
-; X64-NEXT:    paddb %xmm3, %xmm3
+; X64-NEXT:    paddb %xmm2, %xmm3
 ; X64-NEXT:    paddb %xmm1, %xmm1
 ; X64-NEXT:    movdqa %xmm1, %xmm0
 ; X64-NEXT:    pblendvb %xmm0, %xmm3, %xmm2

test/CodeGen/X86/vector-blend.ll

@@ -992,7 +992,7 @@ define <4 x i32> @blend_neg_logic_v4i32_2(<4 x i32> %v, <4 x i32> %c) {
 ; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    psrad $31, %xmm1
 ; SSE41-NEXT:    pxor %xmm3, %xmm3
-; SSE41-NEXT:    psubd %xmm2, %xmm3
+; SSE41-NEXT:    psubd %xmm0, %xmm3
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
 ; SSE41-NEXT:    blendvps %xmm0, %xmm2, %xmm3
 ; SSE41-NEXT:    movaps %xmm3, %xmm0

test/CodeGen/X86/vector-idiv-sdiv-128.ll

@@ -176,13 +176,13 @@ define <16 x i8> @test_div7_16i8(<16 x i8> %a) nounwind {
 ; SSE2-LABEL: test_div7_16i8:
 ; SSE2:       # BB#0:
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm0[8],xmm2[9],xmm0[9],xmm2[10],xmm0[10],xmm2[11],xmm0[11],xmm2[12],xmm0[12],xmm2[13],xmm0[13],xmm2[14],xmm0[14],xmm2[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [65427,65427,65427,65427,65427,65427,65427,65427]
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2
 ; SSE2-NEXT:    psrlw $8, %xmm2
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
-; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1],xmm1[2],xmm0[2],xmm1[3],xmm0[3],xmm1[4],xmm0[4],xmm1[5],xmm0[5],xmm1[6],xmm0[6],xmm1[7],xmm0[7]
 ; SSE2-NEXT:    psraw $8, %xmm1
 ; SSE2-NEXT:    pmullw %xmm3, %xmm1
 ; SSE2-NEXT:    psrlw $8, %xmm1
@@ -482,13 +482,13 @@ define <16 x i8> @test_rem7_16i8(<16 x i8> %a) nounwind {
 ; SSE2-LABEL: test_rem7_16i8:
 ; SSE2:       # BB#0:
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm0[8],xmm2[9],xmm0[9],xmm2[10],xmm0[10],xmm2[11],xmm0[11],xmm2[12],xmm0[12],xmm2[13],xmm0[13],xmm2[14],xmm0[14],xmm2[15],xmm0[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [65427,65427,65427,65427,65427,65427,65427,65427]
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2
 ; SSE2-NEXT:    psrlw $8, %xmm2
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
-; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1],xmm1[2],xmm0[2],xmm1[3],xmm0[3],xmm1[4],xmm0[4],xmm1[5],xmm0[5],xmm1[6],xmm0[6],xmm1[7],xmm0[7]
 ; SSE2-NEXT:    psraw $8, %xmm1
 ; SSE2-NEXT:    pmullw %xmm3, %xmm1
 ; SSE2-NEXT:    psrlw $8, %xmm1
@@ -504,7 +504,7 @@ define <16 x i8> @test_rem7_16i8(<16 x i8> %a) nounwind {
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    paddb %xmm2, %xmm1
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [7,7,7,7,7,7,7,7]
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2

test/CodeGen/X86/vector-idiv-udiv-128.ll

@@ -481,7 +481,7 @@ define <16 x i8> @test_rem7_16i8(<16 x i8> %a) nounwind {
 ; SSE2-NEXT:    psrlw $2, %xmm1
 ; SSE2-NEXT:    pand {{.*}}(%rip), %xmm1
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
-; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15]
+; SSE2-NEXT:    punpckhbw {{.*#+}} xmm2 = xmm2[8],xmm1[8],xmm2[9],xmm1[9],xmm2[10],xmm1[10],xmm2[11],xmm1[11],xmm2[12],xmm1[12],xmm2[13],xmm1[13],xmm2[14],xmm1[14],xmm2[15],xmm1[15]
 ; SSE2-NEXT:    psraw $8, %xmm2
 ; SSE2-NEXT:    movdqa {{.*#+}} xmm3 = [7,7,7,7,7,7,7,7]
 ; SSE2-NEXT:    pmullw %xmm3, %xmm2

test/CodeGen/X86/vector-rotate-128.ll

@@ -361,7 +361,7 @@ define <8 x i16> @var_rotate_v8i16(<8 x i16> %a, <8 x i16> %b) nounwind {
 ; SSE41-NEXT:    psllw $4, %xmm1
 ; SSE41-NEXT:    por %xmm0, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm4
-; SSE41-NEXT:    paddw %xmm4, %xmm4
+; SSE41-NEXT:    paddw %xmm1, %xmm4
 ; SSE41-NEXT:    movdqa %xmm3, %xmm6
 ; SSE41-NEXT:    psllw $8, %xmm6
 ; SSE41-NEXT:    movdqa %xmm3, %xmm5
@@ -386,7 +386,7 @@ define <8 x i16> @var_rotate_v8i16(<8 x i16> %a, <8 x i16> %b) nounwind {
 ; SSE41-NEXT:    psllw $4, %xmm2
 ; SSE41-NEXT:    por %xmm0, %xmm2
 ; SSE41-NEXT:    movdqa %xmm2, %xmm1
-; SSE41-NEXT:    paddw %xmm1, %xmm1
+; SSE41-NEXT:    paddw %xmm2, %xmm1
 ; SSE41-NEXT:    movdqa %xmm3, %xmm4
 ; SSE41-NEXT:    psrlw $8, %xmm4
 ; SSE41-NEXT:    movdqa %xmm2, %xmm0
@@ -631,10 +631,10 @@ define <16 x i8> @var_rotate_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm2 = [8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]
 ; SSE41-NEXT:    psubb %xmm3, %xmm2
 ; SSE41-NEXT:    psllw $5, %xmm3
-; SSE41-NEXT:    movdqa %xmm1, %xmm5
+; SSE41-NEXT:    movdqa %xmm0, %xmm5
 ; SSE41-NEXT:    psllw $4, %xmm5
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm5
-; SSE41-NEXT:    movdqa %xmm1, %xmm4
+; SSE41-NEXT:    movdqa %xmm0, %xmm4
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm5, %xmm4
 ; SSE41-NEXT:    movdqa %xmm4, %xmm5
@@ -644,13 +644,13 @@ define <16 x i8> @var_rotate_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm5, %xmm4
 ; SSE41-NEXT:    movdqa %xmm4, %xmm5
-; SSE41-NEXT:    paddb %xmm5, %xmm5
+; SSE41-NEXT:    paddb %xmm4, %xmm5
 ; SSE41-NEXT:    paddb %xmm3, %xmm3
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm5, %xmm4
 ; SSE41-NEXT:    psllw $5, %xmm2
 ; SSE41-NEXT:    movdqa %xmm2, %xmm3
-; SSE41-NEXT:    paddb %xmm3, %xmm3
+; SSE41-NEXT:    paddb %xmm2, %xmm3
 ; SSE41-NEXT:    movdqa %xmm1, %xmm5
 ; SSE41-NEXT:    psrlw $4, %xmm5
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm5
@@ -1191,7 +1191,7 @@ define <16 x i8> @constant_rotate_v16i8(<16 x i8> %a) nounwind {
 ; SSE41-LABEL: constant_rotate_v16i8:
 ; SSE41:       # BB#0:
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
-; SSE41-NEXT:    movdqa %xmm1, %xmm3
+; SSE41-NEXT:    movdqa %xmm0, %xmm3
 ; SSE41-NEXT:    psllw $4, %xmm3
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm3
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [8192,24640,41088,57536,57600,41152,24704,8256]
@@ -1203,7 +1203,7 @@ define <16 x i8> @constant_rotate_v16i8(<16 x i8> %a) nounwind {
 ; SSE41-NEXT:    paddb %xmm0, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
 ; SSE41-NEXT:    movdqa %xmm2, %xmm3
-; SSE41-NEXT:    paddb %xmm3, %xmm3
+; SSE41-NEXT:    paddb %xmm2, %xmm3
 ; SSE41-NEXT:    paddb %xmm0, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3

test/CodeGen/X86/vector-sext.ll

@@ -243,7 +243,7 @@ define <8 x i32> @sext_16i8_to_8i32(<16 x i8> %A) nounwind uwtable readnone ssp
 ; SSSE3-LABEL: sext_16i8_to_8i32:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm1
-; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
 ; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
 ; SSSE3-NEXT:    psrad $24, %xmm0
 ; SSSE3-NEXT:    pshufb {{.*#+}} xmm1 = xmm1[u,u,u,4,u,u,u,5,u,u,u,6,u,u,u,7]
@@ -312,7 +312,7 @@ define <16 x i32> @sext_16i8_to_16i32(<16 x i8> %A) nounwind uwtable readnone ss
 ; SSSE3-LABEL: sext_16i8_to_16i32:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm3
-; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm3[0],xmm0[1],xmm3[1],xmm0[2],xmm3[2],xmm0[3],xmm3[3],xmm0[4],xmm3[4],xmm0[5],xmm3[5],xmm0[6],xmm3[6],xmm0[7],xmm3[7]
+; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
 ; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
 ; SSSE3-NEXT:    psrad $24, %xmm0
 ; SSSE3-NEXT:    punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm3[8],xmm1[9],xmm3[9],xmm1[10],xmm3[10],xmm1[11],xmm3[11],xmm1[12],xmm3[12],xmm1[13],xmm3[13],xmm1[14],xmm3[14],xmm1[15],xmm3[15]
@@ -443,7 +443,7 @@ define <4 x i64> @sext_16i8_to_4i64(<16 x i8> %A) nounwind uwtable readnone ssp
 ; SSSE3-LABEL: sext_16i8_to_4i64:
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm1
-; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
 ; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm2
 ; SSSE3-NEXT:    psrad $31, %xmm2
@@ -499,7 +499,7 @@ define <8 x i64> @sext_16i8_to_8i64(<16 x i8> %A) nounwind uwtable readnone ssp
 ; SSE2-LABEL: sext_16i8_to_8i64:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
-; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3],xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; SSE2-NEXT:    punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7]
 ; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
 ; SSE2-NEXT:    movdqa %xmm0, %xmm2
 ; SSE2-NEXT:    psrad $31, %xmm2
@@ -1112,7 +1112,7 @@ define <8 x i64> @sext_8i32_to_8i64(<8 x i32> %A) nounwind uwtable readnone ssp
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
 ; SSE2-NEXT:    movdqa %xmm0, %xmm3
 ; SSE2-NEXT:    psrad $31, %xmm3
-; SSE2-NEXT:    movdqa %xmm2, %xmm4
+; SSE2-NEXT:    movdqa %xmm1, %xmm4
 ; SSE2-NEXT:    psrad $31, %xmm4
 ; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm0[2,3,0,1]
 ; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm3[0],xmm0[1],xmm3[1]
@@ -1131,7 +1131,7 @@ define <8 x i64> @sext_8i32_to_8i64(<8 x i32> %A) nounwind uwtable readnone ssp
 ; SSSE3-NEXT:    movdqa %xmm1, %xmm2
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm3
 ; SSSE3-NEXT:    psrad $31, %xmm3
-; SSSE3-NEXT:    movdqa %xmm2, %xmm4
+; SSSE3-NEXT:    movdqa %xmm1, %xmm4
 ; SSSE3-NEXT:    psrad $31, %xmm4
 ; SSSE3-NEXT:    pshufd {{.*#+}} xmm1 = xmm0[2,3,0,1]
 ; SSSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm3[0],xmm0[1],xmm3[1]

test/CodeGen/X86/vector-shift-ashr-128.ll

@@ -274,7 +274,7 @@ define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) nounwind {
 ; SSE41-NEXT:    psllw $4, %xmm1
 ; SSE41-NEXT:    por %xmm0, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3
-; SSE41-NEXT:    paddw %xmm3, %xmm3
+; SSE41-NEXT:    paddw %xmm1, %xmm3
 ; SSE41-NEXT:    movdqa %xmm2, %xmm4
 ; SSE41-NEXT:    psraw $8, %xmm4
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0

test/CodeGen/X86/vector-shift-lshr-128.ll

@@ -245,7 +245,7 @@ define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) nounwind {
 ; SSE41-NEXT:    psllw $4, %xmm1
 ; SSE41-NEXT:    por %xmm0, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3
-; SSE41-NEXT:    paddw %xmm3, %xmm3
+; SSE41-NEXT:    paddw %xmm1, %xmm3
 ; SSE41-NEXT:    movdqa %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $8, %xmm4
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
@@ -407,7 +407,7 @@ define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41:       # BB#0:
 ; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    psllw $5, %xmm1
-; SSE41-NEXT:    movdqa %xmm2, %xmm3
+; SSE41-NEXT:    movdqa %xmm0, %xmm3
 ; SSE41-NEXT:    psrlw $4, %xmm3
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm3
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
@@ -679,7 +679,7 @@ define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    pshufb %xmm0, %xmm1
 ; SSE41-NEXT:    psllw $5, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3
-; SSE41-NEXT:    paddb %xmm3, %xmm3
+; SSE41-NEXT:    paddb %xmm1, %xmm3
 ; SSE41-NEXT:    movdqa %xmm2, %xmm4
 ; SSE41-NEXT:    psrlw $4, %xmm4
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm4
@@ -1101,7 +1101,7 @@ define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) nounwind {
 ; SSE41-LABEL: constant_shift_v16i8:
 ; SSE41:       # BB#0:
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
-; SSE41-NEXT:    movdqa %xmm1, %xmm2
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    psrlw $4, %xmm2
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm2
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [8192,24640,41088,57536,49376,32928,16480,32]

test/CodeGen/X86/vector-shift-shl-128.ll

@@ -202,7 +202,7 @@ define <8 x i16> @var_shift_v8i16(<8 x i16> %a, <8 x i16> %b) nounwind {
 ; SSE41-NEXT:    psllw $4, %xmm1
 ; SSE41-NEXT:    por %xmm0, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3
-; SSE41-NEXT:    paddw %xmm3, %xmm3
+; SSE41-NEXT:    paddw %xmm1, %xmm3
 ; SSE41-NEXT:    movdqa %xmm2, %xmm4
 ; SSE41-NEXT:    psllw $8, %xmm4
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
@@ -361,7 +361,7 @@ define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41:       # BB#0:
 ; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    psllw $5, %xmm1
-; SSE41-NEXT:    movdqa %xmm2, %xmm3
+; SSE41-NEXT:    movdqa %xmm0, %xmm3
 ; SSE41-NEXT:    psllw $4, %xmm3
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm3
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
@@ -373,7 +373,7 @@ define <16 x i8> @var_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
 ; SSE41-NEXT:    movdqa %xmm2, %xmm3
-; SSE41-NEXT:    paddb %xmm3, %xmm3
+; SSE41-NEXT:    paddb %xmm2, %xmm3
 ; SSE41-NEXT:    paddb %xmm1, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm3, %xmm2
@@ -627,7 +627,7 @@ define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    pshufb %xmm0, %xmm1
 ; SSE41-NEXT:    psllw $5, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm3
-; SSE41-NEXT:    paddb %xmm3, %xmm3
+; SSE41-NEXT:    paddb %xmm1, %xmm3
 ; SSE41-NEXT:    movdqa %xmm2, %xmm4
 ; SSE41-NEXT:    psllw $4, %xmm4
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm4
@@ -639,7 +639,7 @@ define <16 x i8> @splatvar_shift_v16i8(<16 x i8> %a, <16 x i8> %b) nounwind {
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm1, %xmm2
 ; SSE41-NEXT:    movdqa %xmm2, %xmm1
-; SSE41-NEXT:    paddb %xmm1, %xmm1
+; SSE41-NEXT:    paddb %xmm2, %xmm1
 ; SSE41-NEXT:    paddb %xmm3, %xmm3
 ; SSE41-NEXT:    movdqa %xmm3, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm1, %xmm2
@@ -957,7 +957,7 @@ define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) nounwind {
 ; SSE41-LABEL: constant_shift_v16i8:
 ; SSE41:       # BB#0:
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
-; SSE41-NEXT:    movdqa %xmm1, %xmm2
+; SSE41-NEXT:    movdqa %xmm0, %xmm2
 ; SSE41-NEXT:    psllw $4, %xmm2
 ; SSE41-NEXT:    pand {{.*}}(%rip), %xmm2
 ; SSE41-NEXT:    movdqa {{.*#+}} xmm0 = [8192,24640,41088,57536,49376,32928,16480,32]
@@ -968,7 +968,7 @@ define <16 x i8> @constant_shift_v16i8(<16 x i8> %a) nounwind {
 ; SSE41-NEXT:    paddb %xmm0, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm2, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm2
-; SSE41-NEXT:    paddb %xmm2, %xmm2
+; SSE41-NEXT:    paddb %xmm1, %xmm2
 ; SSE41-NEXT:    paddb %xmm0, %xmm0
 ; SSE41-NEXT:    pblendvb %xmm0, %xmm2, %xmm1
 ; SSE41-NEXT:    movdqa %xmm1, %xmm0

test/CodeGen/X86/vector-shuffle-combining.ll

@@ -2792,7 +2792,7 @@ define <4 x float> @PR22377(<4 x float> %a, <4 x float> %b) {
 ; SSE-LABEL: PR22377:
 ; SSE:       # BB#0: # %entry
 ; SSE-NEXT:    movaps %xmm0, %xmm1
-; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,3,1,3]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,3],xmm0[1,3]
 ; SSE-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,2,0,2]
 ; SSE-NEXT:    addps %xmm0, %xmm1
 ; SSE-NEXT:    unpcklps {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]

test/CodeGen/X86/vector-trunc-math.ll

@@ -4964,7 +4964,7 @@ define <4 x i32> @mul_add_const_v4i64_v4i32(<4 x i32> %a0, <4 x i32> %a1) nounwi
 ; SSE-LABEL: mul_add_const_v4i64_v4i32:
 ; SSE:       # BB#0:
 ; SSE-NEXT:    movdqa %xmm0, %xmm2
-; SSE-NEXT:    pshufd {{.*#+}} xmm0 = xmm2[0,1,1,3]
+; SSE-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,1,1,3]
 ; SSE-NEXT:    pshufd {{.*#+}} xmm2 = xmm2[2,1,3,3]
 ; SSE-NEXT:    pshufd {{.*#+}} xmm3 = xmm1[0,1,1,3]
 ; SSE-NEXT:    pshufd {{.*#+}} xmm1 = xmm1[2,1,3,3]

test/CodeGen/X86/vector-zext.ll

@@ -246,7 +246,7 @@ define <16 x i32> @zext_16i8_to_16i32(<16 x i8> %A) nounwind uwtable readnone ss
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm3
 ; SSE2-NEXT:    pxor %xmm4, %xmm4
-; SSE2-NEXT:    movdqa %xmm3, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3],xmm1[4],xmm4[4],xmm1[5],xmm4[5],xmm1[6],xmm4[6],xmm1[7],xmm4[7]
 ; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm4[0],xmm0[1],xmm4[1],xmm0[2],xmm4[2],xmm0[3],xmm4[3]
@@ -261,7 +261,7 @@ define <16 x i32> @zext_16i8_to_16i32(<16 x i8> %A) nounwind uwtable readnone ss
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm3
 ; SSSE3-NEXT:    pxor %xmm4, %xmm4
-; SSSE3-NEXT:    movdqa %xmm3, %xmm1
+; SSSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSSE3-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3],xmm1[4],xmm4[4],xmm1[5],xmm4[5],xmm1[6],xmm4[6],xmm1[7],xmm4[7]
 ; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm4[0],xmm0[1],xmm4[1],xmm0[2],xmm4[2],xmm0[3],xmm4[3]
@@ -399,7 +399,7 @@ define <8 x i64> @zext_16i8_to_8i64(<16 x i8> %A) nounwind uwtable readnone ssp
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    pxor %xmm4, %xmm4
-; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm1[1,1,2,3]
+; SSE2-NEXT:    pshufd {{.*#+}} xmm3 = xmm0[1,1,2,3]
 ; SSE2-NEXT:    punpcklbw {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3],xmm1[4],xmm4[4],xmm1[5],xmm4[5],xmm1[6],xmm4[6],xmm1[7],xmm4[7]
 ; SSE2-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3]
 ; SSE2-NEXT:    movdqa %xmm1, %xmm0
@@ -700,7 +700,7 @@ define <8 x i64> @zext_8i16_to_8i64(<8 x i16> %A) nounwind uwtable readnone ssp
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm0, %xmm3
 ; SSE2-NEXT:    pxor %xmm4, %xmm4
-; SSE2-NEXT:    movdqa %xmm3, %xmm1
+; SSE2-NEXT:    movdqa %xmm0, %xmm1
 ; SSE2-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3]
 ; SSE2-NEXT:    movdqa %xmm1, %xmm0
 ; SSE2-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm4[0],xmm0[1],xmm4[1]
@@ -715,7 +715,7 @@ define <8 x i64> @zext_8i16_to_8i64(<8 x i16> %A) nounwind uwtable readnone ssp
 ; SSSE3:       # BB#0: # %entry
 ; SSSE3-NEXT:    movdqa %xmm0, %xmm3
 ; SSSE3-NEXT:    pxor %xmm4, %xmm4
-; SSSE3-NEXT:    movdqa %xmm3, %xmm1
+; SSSE3-NEXT:    movdqa %xmm0, %xmm1
 ; SSSE3-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1],xmm1[2],xmm4[2],xmm1[3],xmm4[3]
 ; SSSE3-NEXT:    movdqa %xmm1, %xmm0
 ; SSSE3-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm4[0],xmm0[1],xmm4[1]
@@ -1582,7 +1582,7 @@ define <8 x i32> @shuf_zext_8i16_to_8i32(<8 x i16> %A) nounwind uwtable readnone
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
 ; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    pmovzxwd {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero
+; SSE41-NEXT:    pmovzxwd {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero
 ; SSE41-NEXT:    punpckhwd {{.*#+}} xmm1 = xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
 ; SSE41-NEXT:    retq
 ;
@@ -1630,7 +1630,7 @@ define <4 x i64> @shuf_zext_4i32_to_4i64(<4 x i32> %A) nounwind uwtable readnone
 ; SSE41:       # BB#0: # %entry
 ; SSE41-NEXT:    movdqa %xmm0, %xmm1
 ; SSE41-NEXT:    pxor %xmm2, %xmm2
-; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero
+; SSE41-NEXT:    pmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
 ; SSE41-NEXT:    punpckhdq {{.*#+}} xmm1 = xmm1[2],xmm2[2],xmm1[3],xmm2[3]
 ; SSE41-NEXT:    retq
 ;

test/CodeGen/X86/vselect-minmax.ll

@@ -3344,12 +3344,12 @@ define <64 x i8> @test98(<64 x i8> %a, <64 x i8> %b) {
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm3, %xmm8
 ; SSE2-NEXT:    movdqa %xmm2, %xmm9
-; SSE2-NEXT:    movdqa %xmm8, %xmm12
+; SSE2-NEXT:    movdqa %xmm3, %xmm12
 ; SSE2-NEXT:    pcmpgtb %xmm7, %xmm12
 ; SSE2-NEXT:    pcmpeqd %xmm13, %xmm13
 ; SSE2-NEXT:    movdqa %xmm12, %xmm3
 ; SSE2-NEXT:    pxor %xmm13, %xmm3
-; SSE2-NEXT:    movdqa %xmm9, %xmm14
+; SSE2-NEXT:    movdqa %xmm2, %xmm14
 ; SSE2-NEXT:    pcmpgtb %xmm6, %xmm14
 ; SSE2-NEXT:    movdqa %xmm14, %xmm2
 ; SSE2-NEXT:    pxor %xmm13, %xmm2
@@ -3487,12 +3487,12 @@ define <64 x i8> @test100(<64 x i8> %a, <64 x i8> %b) {
 ; SSE2-NEXT:    movdqa %xmm2, %xmm9
 ; SSE2-NEXT:    movdqa %xmm0, %xmm10
 ; SSE2-NEXT:    movdqa %xmm7, %xmm12
-; SSE2-NEXT:    pcmpgtb %xmm8, %xmm12
+; SSE2-NEXT:    pcmpgtb %xmm3, %xmm12
 ; SSE2-NEXT:    pcmpeqd %xmm0, %xmm0
 ; SSE2-NEXT:    movdqa %xmm12, %xmm3
 ; SSE2-NEXT:    pxor %xmm0, %xmm3
 ; SSE2-NEXT:    movdqa %xmm6, %xmm13
-; SSE2-NEXT:    pcmpgtb %xmm9, %xmm13
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm13
 ; SSE2-NEXT:    movdqa %xmm13, %xmm2
 ; SSE2-NEXT:    pxor %xmm0, %xmm2
 ; SSE2-NEXT:    movdqa %xmm5, %xmm14
@@ -4225,12 +4225,12 @@ define <16 x i32> @test114(<16 x i32> %a, <16 x i32> %b) {
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm3, %xmm8
 ; SSE2-NEXT:    movdqa %xmm2, %xmm9
-; SSE2-NEXT:    movdqa %xmm8, %xmm12
+; SSE2-NEXT:    movdqa %xmm3, %xmm12
 ; SSE2-NEXT:    pcmpgtd %xmm7, %xmm12
 ; SSE2-NEXT:    pcmpeqd %xmm13, %xmm13
 ; SSE2-NEXT:    movdqa %xmm12, %xmm3
 ; SSE2-NEXT:    pxor %xmm13, %xmm3
-; SSE2-NEXT:    movdqa %xmm9, %xmm14
+; SSE2-NEXT:    movdqa %xmm2, %xmm14
 ; SSE2-NEXT:    pcmpgtd %xmm6, %xmm14
 ; SSE2-NEXT:    movdqa %xmm14, %xmm2
 ; SSE2-NEXT:    pxor %xmm13, %xmm2
@@ -4368,12 +4368,12 @@ define <16 x i32> @test116(<16 x i32> %a, <16 x i32> %b) {
 ; SSE2-NEXT:    movdqa %xmm2, %xmm9
 ; SSE2-NEXT:    movdqa %xmm0, %xmm10
 ; SSE2-NEXT:    movdqa %xmm7, %xmm12
-; SSE2-NEXT:    pcmpgtd %xmm8, %xmm12
+; SSE2-NEXT:    pcmpgtd %xmm3, %xmm12
 ; SSE2-NEXT:    pcmpeqd %xmm0, %xmm0
 ; SSE2-NEXT:    movdqa %xmm12, %xmm3
 ; SSE2-NEXT:    pxor %xmm0, %xmm3
 ; SSE2-NEXT:    movdqa %xmm6, %xmm13
-; SSE2-NEXT:    pcmpgtd %xmm9, %xmm13
+; SSE2-NEXT:    pcmpgtd %xmm2, %xmm13
 ; SSE2-NEXT:    movdqa %xmm13, %xmm2
 ; SSE2-NEXT:    pxor %xmm0, %xmm2
 ; SSE2-NEXT:    movdqa %xmm5, %xmm14
@@ -4890,7 +4890,7 @@ define <8 x i64> @test122(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test122:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm8
-; SSE2-NEXT:    movdqa %xmm8, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -5164,7 +5164,7 @@ define <8 x i64> @test124(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test124:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm11
-; SSE2-NEXT:    movdqa %xmm11, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -5467,7 +5467,7 @@ define <8 x i64> @test126(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test126:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm8
-; SSE2-NEXT:    movdqa %xmm8, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -5795,7 +5795,7 @@ define <8 x i64> @test128(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test128:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm11
-; SSE2-NEXT:    movdqa %xmm11, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -6047,7 +6047,7 @@ define <64 x i8> @test130(<64 x i8> %a, <64 x i8> %b) {
 ; SSE2-NEXT:    pcmpeqd %xmm13, %xmm13
 ; SSE2-NEXT:    movdqa %xmm12, %xmm9
 ; SSE2-NEXT:    pxor %xmm13, %xmm9
-; SSE2-NEXT:    movdqa %xmm8, %xmm14
+; SSE2-NEXT:    movdqa %xmm2, %xmm14
 ; SSE2-NEXT:    pcmpgtb %xmm6, %xmm14
 ; SSE2-NEXT:    movdqa %xmm14, %xmm2
 ; SSE2-NEXT:    pxor %xmm13, %xmm2
@@ -6190,7 +6190,7 @@ define <64 x i8> @test132(<64 x i8> %a, <64 x i8> %b) {
 ; SSE2-NEXT:    movdqa %xmm12, %xmm9
 ; SSE2-NEXT:    pxor %xmm0, %xmm9
 ; SSE2-NEXT:    movdqa %xmm6, %xmm13
-; SSE2-NEXT:    pcmpgtb %xmm8, %xmm13
+; SSE2-NEXT:    pcmpgtb %xmm2, %xmm13
 ; SSE2-NEXT:    movdqa %xmm13, %xmm2
 ; SSE2-NEXT:    pxor %xmm0, %xmm2
 ; SSE2-NEXT:    movdqa %xmm5, %xmm14
@@ -6941,7 +6941,7 @@ define <16 x i32> @test146(<16 x i32> %a, <16 x i32> %b) {
 ; SSE2-NEXT:    pcmpeqd %xmm13, %xmm13
 ; SSE2-NEXT:    movdqa %xmm12, %xmm9
 ; SSE2-NEXT:    pxor %xmm13, %xmm9
-; SSE2-NEXT:    movdqa %xmm8, %xmm14
+; SSE2-NEXT:    movdqa %xmm2, %xmm14
 ; SSE2-NEXT:    pcmpgtd %xmm6, %xmm14
 ; SSE2-NEXT:    movdqa %xmm14, %xmm2
 ; SSE2-NEXT:    pxor %xmm13, %xmm2
@@ -7084,7 +7084,7 @@ define <16 x i32> @test148(<16 x i32> %a, <16 x i32> %b) {
 ; SSE2-NEXT:    movdqa %xmm12, %xmm9
 ; SSE2-NEXT:    pxor %xmm0, %xmm9
 ; SSE2-NEXT:    movdqa %xmm6, %xmm13
-; SSE2-NEXT:    pcmpgtd %xmm8, %xmm13
+; SSE2-NEXT:    pcmpgtd %xmm2, %xmm13
 ; SSE2-NEXT:    movdqa %xmm13, %xmm2
 ; SSE2-NEXT:    pxor %xmm0, %xmm2
 ; SSE2-NEXT:    movdqa %xmm5, %xmm14
@@ -7610,7 +7610,7 @@ define <8 x i64> @test154(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test154:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm8
-; SSE2-NEXT:    movdqa %xmm8, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -7882,7 +7882,7 @@ define <8 x i64> @test156(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test156:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm11
-; SSE2-NEXT:    movdqa %xmm11, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -8183,7 +8183,7 @@ define <8 x i64> @test158(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test158:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm8
-; SSE2-NEXT:    movdqa %xmm8, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -8509,7 +8509,7 @@ define <8 x i64> @test160(<8 x i64> %a, <8 x i64> %b) {
 ; SSE2-LABEL: test160:
 ; SSE2:       # BB#0: # %entry
 ; SSE2-NEXT:    movdqa %xmm7, %xmm11
-; SSE2-NEXT:    movdqa %xmm11, -{{[0-9]+}}(%rsp) # 16-byte Spill
+; SSE2-NEXT:    movdqa %xmm7, -{{[0-9]+}}(%rsp) # 16-byte Spill
 ; SSE2-NEXT:    movdqa %xmm3, %xmm7
 ; SSE2-NEXT:    movdqa %xmm2, %xmm3
 ; SSE2-NEXT:    movdqa %xmm1, %xmm2
@@ -10289,7 +10289,7 @@ define <2 x i64> @test180(<2 x i64> %a, <2 x i64> %b) {
 ; SSE4:       # BB#0: # %entry
 ; SSE4-NEXT:    movdqa %xmm0, %xmm2
 ; SSE4-NEXT:    movdqa %xmm1, %xmm3
-; SSE4-NEXT:    pcmpgtq %xmm2, %xmm3
+; SSE4-NEXT:    pcmpgtq %xmm0, %xmm3
 ; SSE4-NEXT:    pcmpeqd %xmm0, %xmm0
 ; SSE4-NEXT:    pxor %xmm3, %xmm0
 ; SSE4-NEXT:    blendvpd %xmm0, %xmm2, %xmm1
@@ -10768,7 +10768,7 @@ define <2 x i64> @test188(<2 x i64> %a, <2 x i64> %b) {
 ; SSE4:       # BB#0: # %entry
 ; SSE4-NEXT:    movdqa %xmm0, %xmm2
 ; SSE4-NEXT:    movdqa %xmm1, %xmm3
-; SSE4-NEXT:    pcmpgtq %xmm2, %xmm3
+; SSE4-NEXT:    pcmpgtq %xmm0, %xmm3
 ; SSE4-NEXT:    pcmpeqd %xmm0, %xmm0
 ; SSE4-NEXT:    pxor %xmm3, %xmm0
 ; SSE4-NEXT:    blendvpd %xmm0, %xmm1, %xmm2

test/CodeGen/X86/widen_conv-3.ll

@@ -74,7 +74,7 @@ define void @convert_v3i8_to_v3f32(<3 x float>* %dst.addr, <3 x i8>* %src.addr)
 ; X86-SSE2-NEXT:    cvtdq2ps %xmm0, %xmm0
 ; X86-SSE2-NEXT:    movss %xmm0, (%eax)
 ; X86-SSE2-NEXT:    movaps %xmm0, %xmm1
-; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm0[1],xmm1[1]
 ; X86-SSE2-NEXT:    movss %xmm1, 8(%eax)
 ; X86-SSE2-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,1,2,3]
 ; X86-SSE2-NEXT:    movss %xmm0, 4(%eax)

test/CodeGen/X86/widen_conv-4.ll

@@ -19,7 +19,7 @@ define void @convert_v7i16_v7f32(<7 x float>* %dst.addr, <7 x i16> %src) nounwin
 ; X86-SSE2-NEXT:    movups %xmm0, (%eax)
 ; X86-SSE2-NEXT:    movss %xmm2, 16(%eax)
 ; X86-SSE2-NEXT:    movaps %xmm2, %xmm0
-; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm0 = xmm0[1,1]
+; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm0 = xmm2[1],xmm0[1]
 ; X86-SSE2-NEXT:    movss %xmm0, 24(%eax)
 ; X86-SSE2-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1,2,3]
 ; X86-SSE2-NEXT:    movss %xmm2, 20(%eax)
@@ -100,7 +100,7 @@ define void @convert_v3i8_to_v3f32(<3 x float>* %dst.addr, <3 x i8>* %src.addr)
 ; X86-SSE2-NEXT:    cvtdq2ps %xmm0, %xmm0
 ; X86-SSE2-NEXT:    movss %xmm0, (%eax)
 ; X86-SSE2-NEXT:    movaps %xmm0, %xmm1
-; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm1[1,1]
+; X86-SSE2-NEXT:    movhlps {{.*#+}} xmm1 = xmm0[1],xmm1[1]
 ; X86-SSE2-NEXT:    movss %xmm1, 8(%eax)
 ; X86-SSE2-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,1,2,3]
 ; X86-SSE2-NEXT:    movss %xmm0, 4(%eax)

test/CodeGen/X86/x86-shrink-wrap-unwind.ll

@@ -23,7 +23,7 @@ target triple = "x86_64-apple-macosx"
 ; Compare the arguments and jump to exit.
 ; After the prologue is set.
 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
-; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
+; CHECK-NEXT: cmpl %esi, %edi
 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
 ;
 ; Store %a in the alloca.
@@ -69,7 +69,7 @@ attributes #0 = { "no-frame-pointer-elim"="false" }
 ; Compare the arguments and jump to exit.
 ; After the prologue is set.
 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
-; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
+; CHECK-NEXT: cmpl %esi, %edi
 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
 ;
 ; Prologue code.
@@ -115,7 +115,7 @@ attributes #1 = { "no-frame-pointer-elim"="true" }
 ; Compare the arguments and jump to exit.
 ; After the prologue is set.
 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
-; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
+; CHECK-NEXT: cmpl %esi, %edi
 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
 ;
 ; Prologue code.

test/CodeGen/X86/x86-shrink-wrapping.ll

@@ -17,7 +17,7 @@ target triple = "x86_64-apple-macosx"
 ; Compare the arguments and jump to exit.
 ; No prologue needed.
 ; ENABLE: movl %edi, [[ARG0CPY:%e[a-z]+]]
-; ENABLE-NEXT: cmpl %esi, [[ARG0CPY]]
+; ENABLE-NEXT: cmpl %esi, %edi
 ; ENABLE-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
 ;
 ; Prologue code.
@@ -27,7 +27,7 @@ target triple = "x86_64-apple-macosx"
 ; Compare the arguments and jump to exit.
 ; After the prologue is set.
 ; DISABLE: movl %edi, [[ARG0CPY:%e[a-z]+]]
-; DISABLE-NEXT: cmpl %esi, [[ARG0CPY]]
+; DISABLE-NEXT: cmpl %esi, %edi
 ; DISABLE-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
 ;
 ; Store %a in the alloca.